¶ 1. Attorney Richard J. Krue-ger has appealed from a referee's report concluding that he engaged in professional misconduct and recommend*589ing that his license to practice law in Wisconsin be suspended for a period of 60 days.
¶ 2. We conclude that the referee's findings of fact are supported by satisfactory and convincing evidence. We further determine that the seriousness of Attorney Krueger's misconduct warrants the suspension of his license to practice law for a period of 60 days. We also agree with the referee that the costs of the proceeding, which are $20,489.37, should be assessed against Attorney Krueger.
¶ 3. Attorney Krueger was admitted to practice law in Wisconsin in 1956 and now practices part-time in Oconto. He has not previously been the subject of a disciplinary action.
¶ 4. In September 2003 the Office of Lawyer Regulation (OLR) filed a complaint alleging that Attorney Krueger engaged in misconduct with respect to his representation of F.S. Attorney Krueger had represented F.S. in various legal matters beginning in 1960. In 1999, when the pertinent conduct occurred, F.S. was 82 years old.
¶ 5. In June 1999 F.S. experienced financial problems and asked Attorney Krueger to file a Chapter 7 bankruptcy petition on his behalf. Attorney Krueger filed a Chapter 7 petition for F.S. on June 14, 1999. As of that date Attorney Krueger's records indicated that F.S. owed him $7384.15.
¶ 6. The bankruptcy schedules prepared for F.S. by Attorney Krueger showed that F.S. had $70,961 in assets and $372,390 in debts, of which $220,232 constituted secured claims. F.S.'s debt to Attorney Krueger for attorney's fees in the amount of $7384.15 was not disclosed anywhere in the bankruptcy petition or the related schedules of creditors. The schedules to the bankruptcy petition did indicate that Attorney Krueger *590received $1000 for the bankruptcy work and debt counseling and that he would receive an additional $800 for bankruptcy representation prior to filing the required disclosure of attorney compensation which is a requirement under bankruptcy law. Prior to filing F.S.'s bankruptcy petition, Attorney Krueger estimated he had handled about 100 other Chapter 7 bankruptcy petitions.
¶ 7. Prior to filing F.S.'s bankruptcy petition, Attorney Krueger and F.S. discussed the $7384 debt owed to Attorney Krueger. Attorney Krueger said he told F.S., "[m]aybe it's better you get yourself another lawyer to do this because of this apparent possibility of a conflict." Attorney Krueger said F.S. insisted that Attorney Krue-ger continue to represent him. Attorney Krueger admits that F.S. did not sign a written consent waiving the conflict.
¶ 8. After the bankruptcy petition was filed, F.S. and Attorney Krueger attended a first meeting of creditors. At the hearing, the bankruptcy trustee, in Attorney Krueger's presence, asked F.S. if he had listed all of his debts on the bankruptcy schedules. F.S. said he had. Attorney Krueger did not say anything to the bankruptcy trustee with respect to the money F.S. owed him. F.S. received a discharge from the bankruptcy court in October 1999. At the time of the discharge, three adversary proceedings had been filed by secured creditors, and Attorney Krueger represented F.S. in those proceedings. As of February 16, 2000, F.S. owed Attorney Krueger about $12,000, of which $7384.15 was for the pre-bankruptcy legal work and the rest was for post-bankruptcy work relating to the three adversary proceedings.
¶ 9. On February 16, 2000, Attorney Krueger received $40,000 from F.S. At that time, Attorney Krueger *591was negotiating with counsel for two secured creditors of F.S. and offered to settle those cases for 60 percent of the amount owed to each creditor. Attorney Krueger told counsel for those creditors that there was no additional money available for settlement. Attorney Krueger deposited $28,000 of the $40,000 into his client trust account and applied the remaining $12,000 to his own fees, which included the pre-bankruptcy charges of $7384.15.
¶ 10. In the process of settling the claims with the secured creditors, Attorney Krueger paid the creditors from his trust account. In making the disbursements, Attorney Krueger made a math error, leading him to believe the trust account was $500 short. He deposited $500 of his own money into the trust account and added $500 to the F.S. ledger. Attorney Krueger later discovered the math error, withdrew the $500 from his trust account, but continued to bill F.S. for the $500. In December 2000 Attorney Krueger's records showed that F.S. owed Attorney Krueger $6856, which included the $500 math error.
¶ 11. In April 2001 F.S.'s daughter, M.F., contacted Attorney Krueger to discuss the homestead exemption F.S. had claimed in his bankruptcy petition. M.F. informed Attorney Krueger that she was now acting for her father under a power of attorney. During a phone conversation with M.F., Attorney Krueger told her that F.S. owed Attorney Krueger over $6000 and he demanded payment. M.F. requested her father's files. Attorney Krueger refused to turn over the files unless he was paid. M.F. filed a grievance against Attorney Krueger with the OLR in May 2001.
¶ 12. In July 2001 after Attorney Krueger had been informed that M.F. had filed a grievance, Attorney Krueger filed a small claims action against F.S. for *592$5000. A default judgment was entered in November 2001. Attorney Krueger filed a transcript of the judgment in Marinette County in an attempt to place a judgment lien on real estate F.S. had claimed as exempt as his homestead in the bankruptcy proceeding. In September 2002 Attorney Krueger filed an action to require a sheriffs sale to collect on the judgment lien. M.F. and F.S.'s son, J.S., both of whom claimed an interest in the Marinette County property, were named as defendants in the action.
¶ 13. In October 2002 Attorney Lawrence Vesely, while representing M.F. and J.S., entered into a settlement agreement with Attorney Krueger which stopped the pending sheriffs sale. There was a discussion about the defendant's paying Attorney Krueger $2500 in return for which M.F. would withdraw her grievance. M.F. subsequently informed the OLR that she wanted to withdraw the grievance she had filed against Attorney Krueger. The OLR refused to do so and told Attorney Krueger it would continue with its investigation.
¶ 14. As part of the OLR's investigation, Attorney Krueger was requested to tell the OLR what amount of money was owed to him by F.S. before the bankruptcy action was filed. On August 13, 2001, Attorney Krueger wrote to the OLR and advised him that the amount was less than $500. When OLR staff asked about the apparent discrepancy between this statement and the figures shown on Attorney Krueger's ledger for F.S., Attorney Krueger acknowledged that at the time the bankruptcy petition was filed F.S. actually owed him over $7300.
¶ 15. The OLR's complaint alleged the following counts of misconduct:
(1) By representing a client in a Chapter 7 bankruptcy action while the client was indebted to the *593attorney for over $7,000 in unpaid legal fees, and thereafter negotiating for the client regarding the compromise of non-discharged debts at the same time as funds acquired by the client after the bankruptcy were used to pay respondent's own fees in full, without obtaining written consent from his client to the potential conflict of interest, respondent violated SCR 20:1.7(b).1
(2) By preparing bankruptcy schedules for a client that intentionally omitted respondent's own attorney fee debt, by failing to disclose to the bankruptcy trustee the client's payment of respondent's own fees in preference to the client's debts to other creditors, and by collecting on the debt after it would have been discharged in bankruptcy, respondent engaged in conduct involving dishonesty, fraud, deceit, or misrepresentation, contrary to SCR 20:8.4(c).2
(3) By making misrepresentations to OLR staff about the amount of a client's indebtedness to respondent at the time of the client's bankruptcy action, and *594by misrepresenting to OLR that the debt had never been satisfied, respondent violated SCR 22.03(6).3
¶ 16. Konrad Tuchscherer was appointed referee in the matter. A two-day hearing was held in July 2004. The parties submitted a stipulation as to certain findings of fact in which Attorney Krueger admitted the vast majority of the allegations in the OLR's complaint. The referee issued a report on September 30, 2004, finding that the OLR had met its burden of proof with respect to the three counts of misconduct alleged in the complaint.
¶ 17. The referee found that Attorney Krueger's representation of F.S. in the Chapter 7 bankruptcy action at a time when F.S. owed Attorney Krueger in excess of $7000 in unpaid legal fees constituted a conflict of interest in that F.S.'s representation by Attorney Krueger was materially limited by Attorney Krueger's responsibilities to other creditors as well as by Attorney Krueger's own interest in being paid a discharged debt. The referee also found that Attorney Krueger failed to obtain F.S.'s consent to the conflict in writing as required by SCR 20:1.7(b).
¶ 18. The referee also concluded that failing to disclose the pre-bankruptcy debt F.S. owed to Attorney Krueger in the bankruptcy petition, failing to advise the bankruptcy trustee that F.S.'s testimony was not accurate in that the pre-bankruptcy debt owed by F.S. to Attorney Krueger was not included, and depositing *595$12,000 of the $40,000 received from F.S. in Attorney Krueger's account constituted dishonesty, fraud, deceit and misrepresentation in violation of SCR 20:8.4(c).
¶ 19. The referee noted that 11 U.S.C. § 521(1) and Federal Bankruptcy Rule 1007 impose a duty on a debtor for full disclosure of all creditors, and bankruptcy law requires the debtor to sign the bankruptcy petition under penalty of perjury. The referee also noted that the attorney preparing the bankruptcy petition is required to sign the petition, although without such sanction. The referee concluded that by signing F.S.'s bankruptcy petition Attorney Krueger verified to the bankruptcy court that the allegations or other factual contentions in the petition had evidentiary support. The referee also concluded that by applying over $7000 of the $40,000 check received from F.S. in payment of pre-bankruptcy attorney's fees, Attorney Krueger collected a discharged debt in violation of 11 U.S.C. § 524(a)(2). The referee also concluded that Attorney Krueger's collection of pre-bankruptcy debt was not part of a voluntary repayment by F.S. of a discharged debt since the debt collection was part of an arrangement Attorney Krueger had with F.S. before filing the bankruptcy petition. Finally, the referee concluded that Attorney Krueger's letter to the OLR saying F.S. had owed him less than $500 at the time the bankruptcy was filed was a misrepresentation in violation of SCR 22.03(6).
¶ 20. In discussing the appropriate discipline to be imposed for the three counts of misconduct, the referee noted that the OLR's complaint was heavily contested at trial by Attorney Krueger and central to the case was Attorney Krueger's state of mind and whether he perceived his pre-bankruptcy claim against F.S. as a conflict of interest; whether he intentionally *596omitted the debt on the bankruptcy schedules; whether he attempted to collect a discharged debt post-bankruptcy; and whether he intended to mislead the OLR into believing there was very little pre-bankruptcy debt and that it was never paid.
¶ 21. The referee noted that F.S. was "[conspicuously absent from the cast of witnesses at the hearing." The referee noted there was testimony that F.S. had been found incompetent for purposes of a criminal proceeding that had been brought against him. The referee said F.S.'s testimony, if competent, would have been helpful in determining whether the payment of the pre-bankruptcy debt was voluntary. Even though F.S. was not present at the hearing, the referee noted that Attorney Krueger admitted he had an outstanding arrangement with F.S. which provided that when F.S. came into possession of funds after the bankruptcy discharge, those funds would be paid to Attorney Krue-ger to cover the pre-bankruptcy debt. The referee further noted that after being paid for the pre-bankruptcy debt, Attorney Krueger pursued a small claims action against F.S. for additional post-bankruptcy services, which illustrated his propensity to enforce all debts, discharged or otherwise.
¶ 22. The referee noted that this court has held that under SCR 20:1.7(b):
[I]t is mandatory to proceed with consultation and a written conflict waiver even when the lawyer believes the representation may be adversely affected. It is not the state of mind of the Respondent that should be examined, it is the likelihood of adverse affects, there being no particular degree of likelihood necessary. See, In Re: Disciplinary Proceedings Against Michael Trewin, 2004 WI 116, [275 Wis. 2d 116,] 684 N.W.2d 121 (2004).
*597¶ 23. The referee noted that the OLR had recommended a six-month suspension of Attorney Krueger's license, and that Attorney Krueger sought dismissal of the complaint, claiming no violations of supreme court rules occurred. The referee also noted that at the time of the hearing Attorney Krueger was 72 years old and occupied emeritus status with the state bar and that his practice had been winding down for a number of years and was non-existent in the winter when he and his wife reside in Arizona. In addition, the referee noted that in his 48 years of practice, Attorney Krueger had a clean record with the OLR and its predecessor, the Board of Attorneys Professional Responsibility (BAPR) and he had served for many years on a district committee of the BAPR. The referee also noted that Attorney Krueger had been involved in the community and his church and a local circuit court judge, who was subpoenaed to testify at the hearing, spoke highly of his past practices.
¶ 24. The referee concluded that a six-month suspension of Attorney Krueger's license would work an undue hardship and instead recommended that Attorney Krueger's license be suspended for 60 days and that he pay the costs of the proceeding.
¶ 25. Attorney Krueger appealed, arguing that the OLR failed to demonstrate by clear, satisfactory and convincing evidence that any misconduct occurred. Attorney Krueger argues that the OLR failed to call its most critical witness, F.S., and he asserts that his conduct in representing F.S. cannot be judged fairly without testimony directly from F.S. In addition, Attorney Krue-ger argues there was no conflict of interest with respect to his representation of F.S. in the bankruptcy case. He asserts that a bankruptcy is not true litigation and he further contends that his duty of loyalty to F.S., built over 40 years, was not affected simply because F.S. owed *598him money. He also asserts that because he allowed a discharge of his bill without participating as an unsecured creditor in the bankruptcy proceeding, there was less debt to be paid and more assets available to settle other creditors' claims and if anyone should have been prejudiced by the representation, it was Attorney Krue-ger, because his fees were discharged and he had no further right to a recovery.
¶ 26. Attorney Krueger says that unlike the situation in Trewin, he did discuss the unpaid fees with F.S. before F.S. insisted that Attorney Krueger continue to represent him. He also asserts that, unlike the Trewin case, Attorney Krueger's representation of F.S. was not materially limited by his own adverse interest, but rather benefited his client and involved no possible prejudice to his client's interests.
¶ 27. Attorney Krueger argues that failing to list the debt for his attorney's fees on the bankruptcy schedules was not an act of fraud, deceit, dishonesty or misrepresentation, and he contends it was F.S.'s decision not to list the debt on the bankruptcy schedules. He also argues that the OLR failed to prove that F.S.'s payment after the bankruptcy was anything but voluntary. Finally, Attorney Krueger asserts that he made no misrepresentation to the OLR. Although he admits that the information he provided to the OLR regarding the amount of fees owed by F.S. at the time of the bankruptcy filing "was not totally free from error," he contends that his inadvertent mistakes did not rise to the level of constituting a misrepresentation intended to deceive or mislead the OLR. Attorney Krueger asks that the case against him be dismissed and that he be allowed to conclude his legal career with an untarnished record.
¶ 28. The OLR argues that the referee correctly concluded that the OLR met its burden of proof with *599respect to the three counts of misconduct alleged in its complaint. The OLR argues that by colluding with his client to conceal the debt during the bankruptcy and then unlawfully collecting it thereafter, Attorney Krue-ger ran afoul of bankruptcy law and committed an ethical violation. The OLR asserts the responsibility for accurately listing F.S.'s debt to Attorney Krueger on the bankruptcy schedules was both F.S.'s and Attorney Krueger's and Attorney Krueger cannot, under the guise of claiming it was his client's idea, permit a client to submit false schedules to the bankruptcy court because to do so made Attorney Krueger a party to the client's misrepresentation.
¶ 29. The OLR asserts that Attorney Krueger compounded his misrepresentation on ES.'s bankruptcy schedules by permitting F.S. to testify falsely at the first meeting of creditors. It also argues that Attorney Krueger's misconduct includes his improper collection of the discharged debt for attorney's fees, and it says the record is replete with evidence that Attorney Krueger intended on enforcing an otherwise unenforceable arrangement for F.S. to repay the discharged attorney's fees. The OLR says a pre-bankruptcy obligation may only be binding through a reaffirmation agreement, and there was no such agreement here.
¶ 30. The OLR notes while Attorney Krueger claims he did discuss the conflict issue with F.S. on one occasion, he admits he did not obtain a written consent from F.S. When pressed at the hearing, Attorney Krue-ger agreed that obtaining a written consent would have been "a good idea." The OLR says a written consent was more than just a good idea, it was an absolute requirement of SCR 20:1.7(b), and the OLR says it is no defense to a violation of the rule that the client was ultimately not adversely affected by the representation.
*600¶ 31. The OLR argues that testimony from F.S. was not necessary to prove the rule violations in this case, and it notes that Attorney Krueger himself made no effort to call F.S. as a witness.
¶ 32. This court will adopt a referee's findings of fact unless they are clearly erroneous. Conclusions of law are reviewed de novo. See In re Disciplinary Proceedings Against Eisenberg, 2004 WI 14, ¶ 5, 269 Wis. 2d 43, 675 N.W.2d 747. The court may also impose whatever sanction it sees fit regardless of the referee's recommendation. See In re Disciplinary Proceedings Against Widule, 2003 WI 34, ¶ 44, 261 Wis. 2d 45, 660 N.W.2d 686. The referee's findings of fact in this case have not been shown to be clearly erroneous, and we adopt them. We also agree with the referee's conclusions of law. We further agree with the referee's recommendation for a 60-day suspension of Attorney Krueger's license to practice law in Wisconsin and a requirement that Attorney Krueger pay the costs of the proceeding.
¶ 33. Attorney Krueger admits that he was aware, as a creditor of F.S., of a potential conflict of interest situation at the time F.S. asked Attorney Krueger to file the Chapter 7 bankruptcy petition. As Trewin made clear:
If the lawyer believes there will be an actual adverse effect on the representation, the lawyer may not represent the client, even if the client would be willing to agree to the representation. It is only where the lawyer believes the representation will not be adversely affected and the client consents in writing that the representation can continue.
Trewin, 275 Wis. 2d 116, ¶ 45.
*601¶ 34. It is undisputed that Attorney Krueger failed to obtain F.S.'s consent to the conflict in writing as required by SCR 2:1.7(b). It is also undisputed that Attorney Krueger failed to disclose the pre-bankruptcy debt F.S. owed him on the bankruptcy petition, and he did not advise the bankruptcy trustee that F.S.'s testimony was not accurate. In addition, the evidence supports the referee's conclusion that by applying $7384 of the $40,000 check received from F.S. after the bankruptcy in payment of pre-bankruptcy attorney's fees, Attorney Krueger collected a discharged debt in violation of bankruptcy law. The evidence further supports the referee's conclusion that payment of the pre-bankruptcy debt was not a voluntary repayment by F.S. of a discharged debt but rather was part of an arrangement Attorney Krueger had with F.S. prior to filing the bankruptcy. Finally, the evidence supports the referee's conclusion that Attorney Krueger's letter to the OLR saying there was less than $500 owed to him by F.S. at the time the bankruptcy was filed was a knowing misrepresentation, in violation of SCR 22.03(6).
¶ 35. We also agree with the referee that a 60-day suspension of Attorney Krueger's license to practice law in Wisconsin is an appropriate sanction for these violations. While the fact that Attorney Krueger has practiced law for almost 50 years without any previous disciplinary problems is certainly commendable, his age and emeritus status do not immunize him from being disciplined for his misconduct. A 60-day suspension of his license is commensurate with the seriousness of the misconduct and will serve to deter other attorneys from committing similar misconduct. We also find it appropriate for Attorney Krueger to pay the costs of the proceeding.
*602¶ 36. IT IS ORDERED that the license of Richard J. Krueger to practice law in Wisconsin is suspended for a period of 60 days, effective March 8, 2006.
¶ 37. IT IS FURTHER ORDERED that within 60 days of the date of this order, Richard J. Krueger pay to the Office of Lawyer Regulation the costs of this proceeding, provided that if the costs are not paid within the time specified and absent a showing to this court of his inability to pay the costs within that time, the license of Richard J. Krueger to practice law in Wisconsin shall remain suspended until further order of the court.
¶ 38. IT IS FURTHER ORDERED that Richard J. Krueger comply with the provisions of SCR 22.26 concerning the duties of a person whose license to practice law in Wisconsin has been suspended.
¶ 39. N. PATRICK CROOKS, J., took no part.SCR 20:1.7(b) provides: Conflict of interest: general rule.
(b) A lawyer shall not represent a client if the representation of that client may be materially limited by the lawyer's responsibilities to another client or to a third person, or by the lawyer's own interests, unless:
(1) the lawyer reasonably believes the representation will not be adversely affected; and
(2) the client consents in writing after consultation. When representation of multiple clients in a single matter is undertaken, the consultation shall include explanation of the implications of the common representation and the advantages and risks involved.
SCR 20:8.4(c) provides it is professional misconduct for a lawyer to "engage in conduct involving dishonesty, fraud, deceit or misrepresentation."
SCR 22.03(6) provides that "[i]n the course of the investigation, the respondent's wilful failure to provide relevant information, to answer questions fully, or to furnish documents and the respondent's misrepresentation in a disclosure are misconduct, regardless of the merits of the matters asserted in the grievance."