OPINION AND ORDER
MELINDA HARMON, District Judge.Pending before the Court in the above referenced cause, removed from state court on diversity jurisdiction and arising out of damage to the roofs and interiors of Plaintiffs United Neurology, P.A. and Athari Real Estate Ltd.’s properties located at 2315 and 2321 Southwest Freeway, Harris County, Texas, purportedly during Hurricane Ike and Plaintiffs’ subsequent claims under an insurance policy1 issued by Defendant Hartford Lloyd’s Insurance Company (“Hartford”), is Plaintiffs’ motion to set aside appraisal award (instrument #40).
Relevant Law
Because this case was removed from Texas state court, Texas substantive law applies. Erie R.R. Co. v. Tompkins, 304 U.S. 64, 78-80, 58 S.Ct. 817, 82 L.Ed. 1188 (1938). Therefore the Court looks to final decisions by the Texas Supreme Court or, where there are none, attempts to determine as best as it can what that high court would decide about an issue by examining decisions of intermediate appellate state courts. James v. State Farm Mutual Aut. Ins. Co., 719 F.3d 447, 451 (5th Cir.2013), citing Westlake Petrochems., L.L.C. v. United Polychem, Inc., 688 F.3d 232, 238 n. 5 (5th Cir.2012), and Howe ex rel. Howe v. Scottsdale Ins. Co., 204 F.3d 624, 627 (5th Cir.2000).
Appraisal clauses in property insurance policies in Texas provide a method *649to resolve disputes regarding the amount of loss for a covered claim. In re Universal Underwriters of Texas Ins. Co., 345 S.W.3d 404, 406-07 (Tex.2011). Because the language of a contract is intended to embody the intention of the parties, Texas courts have held that appraisal awards made pursuant to the provisions of an insurance contract are binding and enforceable. TMM Investments, Ltd. v. Ohio Cas. Ins. Co., 730 F.3d 466, 471-72 (5th Cir.2013). Such clauses are usually binding and enforceable in the absence of fraud, accident or mistake. State Farm Lloyds v. Johnson, 290 S.W.3d 886, 888 (Tex.2009). Michels v. Safeco Ins. Co. of Indiana, 544 Fed.Appx. 535, 540-41, 2013 WL 5935067, at *5 (5th Cir.2013). There is a strong public policy favoring enforcement of appraisal clauses and every reasonable presumption is indulged to sustain an award; the burden of proof is on the party seeking to avoid such an award. Michels, 544 Fed.Appx. at 540-42, 2013 WL 5935067, at *5-6.2 An award that is substantially in compliance with the insurance policy is presumptively valid and minor discrepancies in the appraisal process or award will not invalidate it. Id. at 541-42, 2013 WL 5935067, at *6, citing Providence Lloyds Ins. Co. v. Crystal City I.S.D. 877 S.W.2d 872, 875 (Tex.App.-San Antonio 1994, no writ); TMM, 730 F.3d at 472. An award not in compliance with the policy’s requirements may be disregarded. Michels, 544 Fed.Appx. at 541-42, 2013 WL 5935067, at *6. In addition to noncompliance with the policy requirements, an appraisal award will also not be enforced if it was made without authority or was the result of fraud, accident or mistake. TMM, 730 F.3d at 472, citing Crystal City, 877 S.W.2d at 875-76.
Generally a standard appraisal clause, such as the one at issue here, specifies appraisal as a means for resolving the “amount of loss” for a covered claim and “binds the parties to have the extent or amount of the loss,” i.e., the damages, determined by the "appraisers, while the question of liability for the loss is left to the court. State Farm Lloyds v. Johnson, 290 S.W.3d 886, 889 (Tex.2009). “The line between liability and damage questions may not always be clear,” however. Id.
In Johnson, the insured claimed that her roof had been damaged by a hailstorm. The insurance company determined that only the shingles on the ridge of the roof had been damaged by hail (as opposed to some other cause), disagreed about how many shingles were damaged and needed to be replaced, and offered to pay an amount much lower than she had requested, so the claimant invoked the appraisal provision. State Farm Lloyds argued against appraisal on the grounds that appraisers could not decide causation questions. The Texas Supreme Court opined that the dispute about how many shingles were damaged and needed to be replaced fell within the scope of appraisal because the amount of the loss, i.e., cost of replacing the shingles (or anything else), depends on both the price and the number of shingles. The Texas Supreme Court further noted that sometimes replacing only a part of a roof is not reasonable or even possible; the policy at issue in the case stated that the insurer would pay reasonable and necessary costs to repair or replace the damaged property and that repair of replacement is an “amount of loss” issue for the appraisers. It emphasized, “Causation relates to both liability *650and damages because it is the connection between them.” Id. at 891-92. It observed, “[W]hen different causes are alleged for a single injury to property, causation is a liability question for the courts.” Id. at 892, citing Wells v. American States Preferred Ins. Co., 919 S.W.2d 679, 685-86 (Tex.App.-Dallas 1996, writ denied) (where “appraisers assessed foundation damage due to plumbing leaks (a covered peril) as ‘O’ but damage due to settling (an excluded peril) as $22,875.94,” the appellate court set aside the appraisal and held that appraisers could decide the amount of damage, but not what caused it). On the other hand, where different kinds of damages affect different items of property, the appraisers may need to decide the damage caused by each before a court can determine liability. Id. at 892, citing Lundstrom v. United Services Automobile Ass’n, 192 S.W.3d 78, 88 (Tex.App.-Houston [14th Dist.] 2006, petition denied) (where “appraisers assessed $4,226.19 for damages due to water (a covered peril) but made no finding for damages due to mold (as to which coverage was disputed),” the district court upheld, and the appellate court affirmed, the award for water damage, but the appellate court found no coverage existed for the mold damage, rendering that issue moot). Id. Where causation would involve dividing the loss due to a covered event from that of a property’s pre-existing wear and tear (a common occurrence, generally excluded by policies), the Texas Supreme Court reasoned that if the appraisers could never allocate damages between the covered and excluded perils, appraisal clauses would be largely undermined, a result that should be avoided. Id. at 892-93. The Johnson court commented,
“[Ajppraisers must always consider causation, at least as an initial matter. An appraisal is for damages caused by a specific occurrence, not every repair a home might need. When asked to assess hail damage, appraisers look only at damage caused by hail; they do not consider leaky faucets or remodeling the kitchen.... Any appraisal necessarily includes some causation element, because setting the “amount of loss” requires appraisers to decide between damages for which coverage is claimed from damages caused by everything else.”
Id. at 893. It concluded, “[Wjhether the appraisers have gone beyond the damage questions entrusted to them will depend on the nature of the damage, the possible causes, the parties’ dispute, and the structure of the appraisal award.” Id. In sum,
[W]hen an indivisible injury to property may have several causes, appraisers can assess the amount of damage and leave causation up to the courts. When divisible losses are involved, appraisers can decide the cost to repair each without deciding who must pay for it.3 When an insurer denies coverage, appraisers can still set the amount of loss in case the insurer turns out to be wrong. And when the parties disagree whether there has been any loss at all, nothing prevents the appraisers from finding “$0” if that is how much damage they find.
Id. at 894.
Recently, in TMM Investments Ltd. v. Ohio Casualty Ins. Co., 730 F.3d 466 (5th Cir.2013), the Fifth Circuit reversed the district court’s decision to set aside an appraisal award. In that case, a hailstorm severely damaged the roof of a shopping center owned by TMM and insured by *651Ohio Casualty Insurance Company (“OCIC”). TMM and OCIC disagreed significantly on the estimated damages, so TMM invoked the appraisal clause. TMM argued that the storm damaged the skylights, while OCIC contended that rocks were responsible; TMM maintained that the roof membrane was damaged by the storm, but OCIC insisted that it was damaged because of improper installation. The district court inter alia decided the two appraisers improperly considered causation and coverage issues when they did not include an estimate for damage to the roof membrane and the skylights, and relying on Wells, 919 S.W.2d 679. It concluded that the appraisers exceeded the scope of their authority in part for that reason, set aside the award, and sent the case to trial on causation, liability, and damages.
On appeal, the Fifth Circuit concluded that the appraisers did not exceed their authority when they considered causation issues and that the part of the appraisal award addressing the damaged skylights and roof membrane should not have been set aside. 730 F.3d at 471. Relying on Johnson, 290 S.W.3d 886 (appraisers do not exceed their authority “when they consider whether the damage was caused by a particular event or was instead the result of non-covered pre-existing perils like wear and tear”), the appellate court in TMM determined that the case fell into the second category established by Johnson, 290 S.W.3d at 892, “when different types of damage occur to different items of property, appraisers may have to decide the damage caused by each before the courts can decide liability” because damage occurred to both the roof membrane and the skylights. TMM, 730 F.3d at 475. In light of that ruling and coupled with the established rule that courts should use “every reasonable presumption to sustain an appraisal award,” the Fifth Circuit concluded that Johnson mandated reversal of the district court’s order setting aside the appraisal award. TMM, 730 F.3d at 475.
Under the doctrine of mitigation of damages, when “a party is entitled to the benefits of a contract and can save himself from damages resulting from its breach at a trifling expense or with reasonable exertions, it is his duty to incur such expense and make such exertions; and in such instances he can only charge the party in default with such damages as he could not have prevented with reasonable exertions and expense.” Walker v. Salt Flat Water Co., 128 Tex. 140, 143-44, 96 S.W.2d 231, 232 (Tex.1936). At trial, the defendant “bears the burden of proving lack of diligence on the part of the Plaintiff, and the amount by which the damages were increased by a failure to mitigate.” Harris County v. Smoker, 934 S.W.2d 714, 721 (TexApp.-Houston [1st Dist.] 1996, writ denied). “[T]he standard is that of ordinary care, i. e, what an ordinary prudent person would have done under the same or similar circumstances.” Hygeia Dairy Co. v. Gonzalez, 994 S.W.2d 220, 224 (Tex.App.-San Antonio 1999) (en banc), citing Moulton v. Alamo Ambulance Service, 414 S.W.2d 444, 447 (Tex.1967). Normally mitigation of damages is an issue for the jury at trial. Id.
Key Facts
After Hurricane Ike, Hartford hired HAAG Engineering (“HAAG”) to investigate the extent of TMM’s claimed damages, and from HAAG’s report Hartford determined that a substantial amount of the damage was not caused by the hurricane. HAAG found that the roof was in poor condition due to normal wear and tear, that most of the leaks existed prior to the storm and were not created by it, that the structural frame parts were damaged by the force of Ike’s winds, that the entry of moisture around windows and doors re-*652suited from inadequate waterproofing for hurricane conditions, that hurricane winds did not damage the decorative brick veneer sections by the windows, and that the damage caused by Ike was restricted to two broken windows, a partly lifted roof edge flashing, separated exterior fascia trim, a torn canvas awning, an advertising sign, and a panel of the brick veneer on the inside that may have been damaged by wind-borne debris. Hartford issued a partial denial letter to United Neurology, the named insured, on April 16, 2009 along with a cheek for $5,987.75 for replacement of the sign, which was expressly covered under the policy.
Plaintiff filed this action on September 13, 2010, asserting that Hartford must pay for damage to the entire roofing systems, for damage to the interior ceiling and drywall on both properties, and for loss of rental income at 2315 Southwest Freeway from the date of loss for at least the twelve-month coverage period of the policy. Hartford states that to its knowledge, Plaintiffs have not made adequate or timely repairs to the properties and the properties are currently not being used for any commercial purpose.
Hartford invoked the appraisal clause in the policy.4 Plaintiffs designated Lewis O’Leary as their appraiser, Hartford designated Alan Berryhill, and the two appraisers agreed upon the Honorable Caroline Garcia to be the umpire.
Berryhill argued that much of the damage at issue was caused by Plaintiffs’ failure to mitigate their damages, while O’Leary contended that mitigation was a liability question beyond the scope of the arbitration. Plaintiffs asked counsel for Hartford via email (# 40, Ex. 2) to join in a stipulation that the failure to mitigate was outside the scope of the appraisal. Hartford’s attorney responded that “the lawyers should stay out of the appraisal process” and that if the appraisal turns out to be flawed, the award could “be easily remedied by disregarding it later.” #40, Ex. 2; Johnson, 290 S.W.3d at 895.
Plaintiffs assert that the umpire indicated that she was considering the mitigation *653argument when she wrote on February 24, 2013, “These questions I have regarding largely the extent of damage to 2315 as a result of Ike v. lack of mitigation.” #40, Ex. 1. On February 28, 2013, Plaintiffs’ appraiser, O’Leary, objected to the umpire’s considering mitigation and asked the umpire at least to distinguish the amount of damages resulting from the hurricane from the amount the umpire determined was the result of failure to mitigate, so that the award could still be upheld if this Court determined that failure to mitigate was a liability issue for the court and the jury. # 40 at p. 3 and Ex. 1. On March 11, 2013, the appraisers and the umpire interviewed Manny Fahid, a former manager of maintenance for Plaintiffs, for approximately forty-five minutes on what steps were and were not taken to mitigate damages. # 40, Ex. 3, Fahid’s Declaration. On March 22, 2013 the umpire issued, and Berryhill also signed, a final appraisal award of $54,363.90 for the building at 2315 Southwest Freeway and $24,250.24 for the building at 2321 Southwest Freeway, without identifying the amount of reduction for Plaintiffs’ failure to mitigate. # 40, Ex. 4.
On March 29, 2013 Hartford paid the appraisal award amount minus the policy’s deductible. Plaintiffs have moved to set aside the appraisal award on the grounds that the umpire and Hartford’s appraiser exceeded their authority.
Plaintiffs’ Motion to Set Aside Appraisal Award (# 46)
Plaintiffs first seek to set aside the appraisal award on the grounds that the umpire and Defendant’s appraiser, Alan W. Berryhill, exceeded them authority by considering Plaintiffs’ failure to mitigate damages and reducing the award accordingly. They argue that mitigation of damages requires a liability determination, a consideration both beyond the scope of proper appraisal under Texas law and in violation of the insurance policy’s appraisal provision, which strictly limited the appraisal to the finding of the “amount of the loss.” # 40, Ex. 5, Policy, Special Property Coverage Form, p. 20. Furthermore Texas law prohibits determinations of liability or coverage by the appraisal. Johnson, 290 S.W.3d at 889-92 (Tex.2009). Reasonable mitigation is a liability/coverage issue. Failure to mitigate is an express exclusion under the policy (#40, Ex. 5, Hartford Ins. Policy, Special Property Coverage Form, p. 17), which provides that even if the damage is otherwise a covered loss, it is excluded if
g. Neglect
Neglect of an insured to use all reasonable means to save and preserve property from further damage at and after the time of loss.
Hartford states an instruction on mitigation of damages at trial is appropriate when the negligence complained of merely contributes to or added to the extent of the losses or injuries but had no part in causing the incident in dispute. Hygeia Dairy Co. v. Gonzalez, 994 S.W.2d at 224. It quotes the instruction on mitigation used in federal courts under such circumstances:
A person who claims damages resulting from the wrongful act of another has a duty under the law to use reasonable diligence to mitigate — to avoid or minimize those damages. If you find the defendant is liable and the plaintiff has suffered damages, the plaintiff may not recover for any item of damage which he could have avoided through reasonable effort. If you find by a preponderance of the evidence the plaintiff unreasonably failed to take advantage of an opportunity to lessen his damages, you should deny him recovery for those damages which he would have avoided *654had he taken advantage of the opportunity. You are the sole judge of whether the plaintiff acted reasonably in avoiding or minimizing his damages. An injured plaintiff may not sit idly by when presented with an opportunity to reduce his damages. However, he is not required to exercise unreasonable efforts or incur unreasonable expenses in mitigating the damages. The defendant has the burden of proving the damages which the plaintiff could have mitigated. In deciding whether to reduce the plaintiffs damages because of his failure to mitigate, you must weigh all the evidence in light of the particular circumstances of the case, using sound discretion in deciding whether the defendant has satisfied his burden of proving that the plaintiffs conduct was not reasonable.
Plaintiffs contend that the finder of fact must consider the following facts in determining a proper reduction of damages due to mitigation: (1) the total amount of the loss; (2) whether some of the damages could have been avoided by a trifling expense or reasonable exertion; (3) whether the plaintiff negligently failed to avoid those damages; and (4) the amount of damages left after subtracting the reasonably avoidable damages. Regarding these facts, Plaintiffs argue that the appraisal panel is only authorized by the appraisal clause to find the “total amount of the loss,” while the second, third and fourth facts relate to liability, which is outside the scope of appraisal and should be left to the court and the jury. See Real Asset Management, Inc. v. Lloyd’s of London, 61 F.3d 1223 (5th Cir.1995) (remanding the case to determine extent of damages caused by plaintiffs failure to mitigate).
Plaintiffs object that here the appraisers decided what portion of the damages was caused by what they decided was the insured’s failure to mitigate. All of the damages were caused by the hurricane. In determining that part of the loss was caused by Plaintiffs’ failure to mitigate and then reducing the award by that amount, the appraisers took away the Court’s authority to determine the liability issue in violation of Johnson, 290 S.W.3d at 892 (“Appraisers can decide the cost of repairs in this context, but if they can also decide causation there would be no liability questions left for the courts.”). The appraisers, rather than the court and the jury, decided what they thought was the amount of damages that could have been avoided by reasonable mitigation and who should pay that amount. They failed to satisfy Plaintiffs’ request that they separate the damages that they believed reasonable mitigation would have saved from the amount of loss so that the court could make a proper determination of liability. Thus they deprived the court and jury of their function. Moreover although the evidence shows that mitigation was considered (#40, Exs. 1, 3, 4), the face of the appraisal award does not mention mitigation. Plaintiffs complain, “If the panel is allowed to ignore the request for delineation and reduce the recovery on account of mitigation without revealing the amount of the reduction, then the panel would be able to exceed its authority without revealing its transgression.” # 40 at p. 12. Plaintiffs further assert that Johnson, 290 S.W.3d at 895, sets out the proper remedy after appraisers exceed their authority: the flaw should be proved at trial and the award set aside.
Defendant’s Response (# 44)
Hartford states that Texas courts have long interpreted the appraisers’ authority to determine the dollar amount of the property damage they are assigned to review to include the power to determine the extent of the covered damage even when the appraisers’ inquiry includes an element of causation. Citing Johnson, 290 S.W.3d at 891 (“Causation relates to both liability *655and damages because it is the connection between them.”), Hartford urges that where different types of damages occur to different types of property, appraisers may have to decide the damage caused by each before the courts can decide liability. Id. at 893. It maintains that under Johnson and the policy’s appraisal clause here, the appraisers and the umpire in this dispute did not exceed their authority by considering the extent of damage caused by wind, a covered peril, during their appraisal determination. Hartford asserts that to set aside the appraisal award, Plaintiffs would have to prove, but have not and cannot, that the umpire, a former state district court judge, conspired or colluded with Hartford’s appraiser to deny fair compensation to Plaintiffs for their hurricane loss.
Moreover, nothing in the award or the record states or shows that the umpire subtracted damage caused by failure to mitigate. The award documents (# 40, Ex. 4) expressly state that the dollar amounts shown are for “the amount of loss.”
Hartford contends that Wells is inapplicable because unlike the single injury in that case, here there are multiple, divisible causes of damage (hurricane, pre-existing wear and tear, and damage caused by Plaintiffs abandonment of the property after April 2009). Hartford argues that Lundstrom, in which the appraisers assessed monetary sums for damages due to water (a covered peril), but none for damage due to mold (over which coverage was disputed), should govern here. In Lundstrom the court of appeals, rejecting the argument that appraisal is precluded whenever causation is at issue, affirmed the award for water damages and rendered mold damage dispute moot by finding no coverage for mold damage. As in Lundstrom, the appraisal panel determined what damage was caused by the hurricane, i.e., the covered loss, which inherently includes consideration of causation to determine the extent of covered damage, and then made that amount the basis of the umpire’s award. Johnson and Lundstrom hold that appraisers are acting within the scope of their authority in considering causation to separate a loss due to a covered event from a property’s preexisting wear-and-tear condition and from the property’s post-loss condition attributable to the insured’s neglect of the property. Hartford charges that through Plaintiffs’ argument that Plaintiffs’ failure to mitigate their damages is a liability determination, Plaintiffs are trying “to reformulate the Policy’s Neglect Exclusion into a liability argument,” improper under Johnson. Appraisal panels can consider causation when deciding between damage for which there is coverage from excluded damage caused by pre-existing conditions, neglect, etc.
Plaintiffs’ Reply (# 45)
Plaintiffs contend that Lundstrom, heavily relied upon by Hartford, actually supports Plaintiffs’ position. Lundstrom involved multiple leaks caused by the alleged negligence of a contractor against whom the Lundstroms obtained a substantial settlement. The continuous leaks caused significant problems, including substantial mold. The insurer, USAA, invoked the appraisal clause on only a narrow issue, damages to the interior of a townhome caused by the “initial wetting,” and USAA expressly notified the Lundstroms that the appraisal “will not address damages involving the ongoing leaking or mold that has resulted. This is a coverage issue which we have discusse[d] and denied. It is the duty of the Appraisers to address property damages and not address policy conditions or coverage.” Lundstrom, 192 S.W.3d at 87. Plaintiffs characterize Lundstrom as a pre-Johnson case in which the Lundstroms challenged the appraisal award not because it involved cov*656erage/liability issues, but because “the appraisal clause can be invoked only when the scope of damage is agreed and not when coverage or causation is disputed.” 192 S.W.3d at 87. Lundstrom in essence held that appraisers cannot determine liability by determining what caused the loss. They should not determine that a failure to mitigate caused the loss and make the legal determination that the award should be reduced because of that finding.
Plaintiffs assert that like Wells and unlike Lundstrom, the appraisal in this suit did involve coverage issues. Like USAA in Lundstrom when it directed the appraisers not to consider pending coverage issues like mold, Plaintiffs here attempted to get Hartford to do the same in counsel’s emails of February 11, 2013 (#40, Ex. 2), but Hartford refused. When causation is involved, it will not bar the appraisal from going forward. If there are two possible causes of the same damage, as in Wells (foundation damage caused by either pipe link or movement), appraisers should only find the total amount of damage without regard to causation and leave the court to determine coverage issues. Johnson, 290 S.W.3d at 894 (“[I]n most cases appraisal can be structured in a way that decides the amount of loss without deciding any liability questions. As already noted, when an indivisible injury to property may have several causes, appraisers can assess the amount of damage” and leave to the court a determination of coverage issues.). Here the appraisers should have been told not to consider mitigation or any other causation issue that involved coverage. When separate types of damage (such as the water and mold in Lundstrom) have different possible causes, the appraisers should assess the damages as to each so that the court, not the appraisers, can determine causation and liability. In Lundstrom the court determined there was no coverage on the mold because it was clear that the appraisal excluded any consideration of mold. Plaintiffs contend that the award should make the damages clear by an express limitation on the appraisal process regarding mitigation, as in Lundstrom regarding mold damage, or by an explanation of the award to show what was done, as in Wells. Here Hartford refused to agree to an express limitation on the appraisal, and the umpire refused the dissenting appraiser’s request to explain in the award how mitigation affected the award. Thus the parties and the court have no way to decide how the undisputed consideration of mitigation affected the award. The award is inherently flawed and should be disregarded. Moreover, Hartford now wants to exploit the ambiguity that Plaintiffs sought to avoid.
Hartford’s Supplement to Its Response (# 46)
Hartford asks the Court to consider the recently issued Fifth Circuit opinion in TMM, 730 F.3d 466 (rejecting Wells and relying on Johnson and Lundstrom in holding that appraisal panels are acting within the scope of their authority when they consider whether damage was caused by a particular event or was instead the result of non-covered perils). The Court has discussed TMM in the Relevant Law section of this Opinion and Order (pp. 648-51).
Hartford argues that as in TMM, the appraisal panel sought to determine what damage was caused by the hurricane and that damage constituted the basis of the umpire’s award. Hartford’s appraiser and the umpire did not make a liability determination. Under the policy, pre-existing “wear and tear” is expressly excluded, as is neglect as it relates to a property’s post-loss condition. TMM, Johnson, and Lundstrom together establish that the appraisal party has the authority to consider causation to separate loss due to a covered event from post-loss conditions attributable to the insured’s neglect, as the panel *657did in this case. Plaintiffs improperly are attempting to reconstruct the policy’s “Neglect Exclusion” into a liability argument, an interpretation which the Court should avoid as the Texas Supreme Court has indicated in Johnson and TMM.
In sum Hartford asks the Court to deny Plaintiffs’ motion to set aside award because the Hartford appraiser and the umpire were within their authority to consider causation in this context and to segregate uncovered damage in order to determine the amount of the covered loss.
Court’s Decision
After considering the parties’ briefs, the documentary evidence, and the applicable law, the Court agrees with Hartford. Appraisal panels act within their authority when they determine whether damage was caused by a covered event or was the result of non-covered preexisting conditions like wear and tear or, in this case, neglect under the terms of the policy. Accordingly, the Court
ORDERS that Plaintiffs’ motion to set aside award is DENIED.
. Insurance Policy Number 61SBAVMI383SC, covering period between August 21, 2008-August 21, 2009 (the "policy”).
. The effect of an appraisal provision is to estop one party from contesting the issue of damages in a suit on the insurance contract, leaving only the question of liability for the court. Lundstrom v. United Services Auto. Ass’n-CIC, 192 S.W.3d 78, 87 (Tex.App.Houston [14th Dist.] 2006, pet. denied); TMM, 730 F.3d at 472.
. Citing Lundstrom, 192 S.W.3d at 87-89 (“rejecting argument that appraisal is barred 'wherever causation factors into the award,’ and affirming appraisal in which appraisers separated water damage from mold damage”).
. The relevant clause (# 40, Ex. 5, endorsement SS 10 11 04 01) provides,
G. Appraisal
The Appraisal PROPERTY LOSS CONDITION is replaced by the following:
If we and you disagree on the amount of loss (or net income or operating expense as regards Business Income Coverage), either may make written demand for an appraisal of the loss. In that event, each party will select a competent and impartial appraiser and notify the other of the appraiser selected within 20 days of such demand. The two appraisers will select an umpire. If they cannot agree within 15 days upon such umpire, either may request that selection be made by a judge of a court having jurisdiction. Each appraiser will state the amount of loss. If they fail to agree, they will submit their differences to the umpire. A decision agreed to by any two will be binding as to the amount of loss. Each party will:
1. Pay its chosen appraiser; and
2. Bear the other expenses of the appraisal and umpire equally.
If there is an appraisal:
1. You will retain your right to bring a legal action against us, subject to the provision of the Legal Action Against Use Condition; and
2. We will still retain our right to deny the claim.
Under Texas law the umpire only has a duty to perform if the parties’ two appraisers disagree and submit their differences to him; otherwise the umpire has no authority to act. TMM, 730 F.3d at 472, citing Fisch v. Transcontinental Ins. Co., 356 S.W.2d 186, 190 (Tex.Civ.App.-Houston 1962) ("Since the umpire’s power to act is conditioned upon a disagreement between the appraisers and the submission of their differences only to him, we are of the opinion that the award which was signed by only one appraiser and the umpire who had no authority to act, is invalid.”). Here Hartford’s appraiser and the umpire signed the appraisal award.