This appeal poses as its prime issue whether a judgment of the courts of the State of Vermont is entitled, under the full faith and credit clause of the United States Constitution, to be enforced in this State. The judgment is a decree of absolute divorce in favor of the plaintiff and carries with it a personal judgment against the defendant for a lump sum alimony in the amount of $25,000. Appellant challenges the validity of the judgment on the ground that it was obtained without due process.
The case has been in this court before on an appeal from an order denying a motion made by the plaintiff for a summary judgment. In affirming the order of denial we felt obliged to accept the defendant’s version of the facts as to all points upon which there was an open question of fact (Chapman v. Chapman, 284 App. Div. 504, 509). There has since been a trial by a court without a jury and certain findings of fact have been made, and a judgment entered in favor of the plaintiff which determined that the judgment of the County Court of Eutland County, Vermont, was obtained by due process and entitled to full faith and credit in the courts of New York. From that judgment the defendant has appealed.
In order to render this opinion intelligible some factual background must be given, now based upon the findings of the trial court, although a great deal of this does not differ materially from the statement of undisputed facts set forth in our previous opinion.
On February 14, 1950 the respondent herein commenced an action against the appellant in the County Court of Eutland *260County, Vermont, for a divorce from bed and board for the limited period of fonr years. This action was roughly equivalent to what wonld be known in this State as a separation action. A general appearance on behalf of appellant was entered in this action by a Vermont attorney and an answer interposed on the merits. At a hearing for alimony pendente lite appellant appeared personally and was ordered to pay the snm of $100 a month. Apparently he paid bnt little heed to that order for thereafter a summary judgment was entered against him in Vermont for arrearage in alimony payments. He not only then left the State of Vermont and remained outside of its jurisdiction until after a judgment of divorce was entered against him, but the evidence indicates that he paid no attention whatever to the attorney who represented him in Vermont and failed to answer any of the latter’s communications to him. Instead he consulted an attorney in New York State who conducted some long-range negotiations with respondent’s counsel in Vermont concerning an adjustment of the marital dispute. Those negotiations proved to be fruitless.
Respondent’s Vermont attorney moved the separation action for trial as of November 20, 1951. By telegram on November 17, 1951, followed by a letter, appellant was notified by his attorney in Vermont of the imminence of a prospective trial date. Appellant made no reply to either the telegram or the letter and the trial date was set for December 17, 1951. He testified he received the telegram two or three days after it was sent, at least before Thanksgiving Day of that year, and tried once to get in touch with his Vermont attorney by telephone. When he failed to reach him on that one occasion he made no further effort either by telephone or letter to communicate with him. From this course of conduct the conclusion is almost inescapable that appellant was content to let the separation action in Vermont go by default, but in any event if judgment had thereafter been entered by default, on the complaint as originally framed he could not have successfully argued lack of due process for he had entered a general appearance and had every opportunity to defend.
However respondent did not proceed on her original complaint. She moved to amend her complaint to substitute for a separation action a cause of action for absolute divorce. We are told, and the proof taken at trial term so indicates, that in Vermont the grounds for a separation and a divorce are the same, although they apparently constitute different statutory cause of action (Vermont Statutes [1947, Rev.], §§ 3205, 3218). In any event respondent’s motion to amend was made on *261December 13, 1951 and returnable at a term of the Rutland County Court on December 17, 1951. There is evidence from which the trial court in this case on appeal could and did find that appellant’s attorney had notice of that motion. On December 15, 1951 appellant’s Vermont attorney filed a motion to withdraw from the case, and this motion was also returnable on December 17, 1951. The Rutland County Court was presided over then by a Judge of the Vermont Superior Court, and, according to his testimony, he held a conference with both respondent’s and appellant’s attorneys in chambers before the motions were decided in open court. He told the attorneys he would grant both motions in the following order — the motion of respondent to amend her complaint and then the motion of appellant’s attorney for leave to withdraw. He also testified that the appellant’s attorney was in the courtroom when the motions were decided in open court; and that he adopted the procedure aforesaid so that appellant would be represented when the motion to amend was made.
In some particulars his testimony was contradicted. Appellant’s Vermont attorney testified that he was never present at any conference with the Superior Court Judge at which the proposed amendment to respondent’s complaint was discussed; and he also denied that he was present in the courtroom when the motions were granted. An excerpt from the Rutland County Court docket, transcribed from the minutes of a court stenographer, indicates that the motion by appellant’s Vermont attorney to withdraw from the case was granted first, and the motion to amend the complaint granted thereafter. However the trial court accepted the testimony of the former Superior Court Judge, bolstered as it was by the testimony of respondent’s Vermont attorney and an Assistant Judge of the County Court, and made his findings accordingly: — that appellant’s Vermont attorney had notice of the motion to amend prior to the time he was permitted to withdraw from the case, and was present when the motion to amend was granted.
We are not disposed to interfere with the estimate of the trial court as to the weight of evidence on this issue. The testimony to support his findings was substantial; there was nothing about it inherently incredible, and his judgment as to credibility and the weight to be attached to it is entitled to acceptance. Of course it may be argued that even the order of the events as found by the trial court did not necessarily satisfy the requirements of due process on the basis that appellant was without adequate representation. The court, in the person of the Superior Court Judge and on his own admission had already *262indicated that he would grant both motions, and it would he somewhat naive to expect appellant’s attorney, whose client had utterly failed to co-operate with him, to assert any real opposition to the motion to amend. It might he argued further that due process is a matter of substance, and not a matter of form to he satisfied by a token representation. In opposition to this however it might he asserted that courts cannot function except through technical requirements and their observance. But in any event these matters were for the court of Vermont to consider. It would be inappropriate for us to pass judgment on them, so far as the decree of divorce alone is concerned, in view of the defendant’s general appearance in the original action for separation and the finding that he was represented at the time the amendment to that cause of action was made. Since plaintiff was a resident of Vermont, and the parties were last domiciled in that State, the courts there had power to grant a valid decree of separation or divorce under the facts stated. This conclusion of course rests upon the familiar principle that the courts of Vermont could determine the marital status of one of the citizens of that State even upon constructive service (Williams v. North Carolina, 317 U. S. 287).
But we cannot dispose of so easily, as a matter of full faith and credit, the issue as to the validity of the personal judgment against defendant for lump sum alimony. We have heretofore held that the Vermont courts ‘ ‘ had no jurisdiction over the defendant personally upon the new cause of action by virtue of his original appearance and they could acquire personal jurisdiction over him only if service were made upon him personally within the State of Vermont or if a new appearance were made by him with respect to the new cause of action. In the absence of such service or appearance, the Vermont courts could render only a judgment in rem against the defendant; they could not enter a valid personal judgment for alimony.” (Chapman v. Chapman, supra, p. 513.) We do not retreat from this position or abandon the principle embodied therein (Matthews v. Matthews, 247 N. Y. 32; 2 Carmody on New York Practice, § 735; Restatement, Judgments, § 5, comment g). However, additional facts revealed in the record before us lead to the belief that the principle thus reaffirmed is not a bar to the affirmance of the judgment here under the full faith and credit clause of the Federal Constitution.
On the same day the motions were granted proof was taken and respondent was granted an absolute divorce, and awarded the lump sum of $25,000 in lieu of alimony. In the meantime appellant had become domiciled in the State of Florida and on *263September 14, 1951 be commenced a divorce action in Florida against respondent by constructive service. Sbe was not served with any process within tbe State of Florida and did not appear in tbe action. Appellant obtained a judgment of divorce in bis favor in Florida on November 23, 1951, but be did not amend bis answer in tbe Vermont separation action to set up tbe Florida divorce nor did be take any other steps to bring it to tbe attention of tbe Vermont court until more than a year later. In November, 1953 appellant petitioned tbe Supreme Court of Vermont for a new trial of tbe Vermont case, chiefly on tbe ground that tbe Florida divorce decree barred tbe granting of tbe Vermont judgment. This petition was dismissed without prejudice for lack of proper service upon respondent. In February, 1954 appellant again petitioned tbe Supreme Court of Vermont for a new trial upon a petition identical in all respects with bis previous petition which bad been denied for lack of proper service. Tbe Supreme Court of Vermont denied bis application for a new trial on tbe ground that be bad not proceeded with due diligence. In our previous decision we said (284 App. Div. 504, 516): “ tbe invalidity of tbe Vermont decree on due process grounds was not raised upon tbe motion for a new trial and was not passed upon by tbe Vermont court.” From our examination of tbe record before us now we are inclined to tbe view that perhaps this statement quoted was too broad in scope. While tbe ground assigned in appellant’s petition for a new trial was based in chief on tbe existence of tbe Florida divorce be did allege that after tbe commencement of proceedings in tbe Rutland County Court on December 17, 1951 be was not represented by counsel. He also alleged that respondent was permitted by tbe Rutland County Court to amend her cause of action for separation and substitute therefor an action for an absolute divorce. That tbe Supreme Court of Vermont was cognizant of tbe procedure adopted may be seen by its opinion (Chapman v. Chapman, 118 Vt. 166). While it is ti*ue that tbe Supreme Court of Vermont neither mentioned nor expressly passed on any issue of due process nevertheless we must assume that since it in effect affirmed tbe judgment by refusing to grant a new trial it found tbe procedure followed by tbe court below to be in accord with due process. Certainly there was implicit in its decision tacit recognition that tbe amendment to tbe prayer for relief in the separation action was duly and regularly made, and in full conformity with the statutory laws and practice in Vermont, and that tbe judgment of divorce and for lump sum alimony was in accordance therewith. For this reason we feel impelled to apply *264the doctrine of res judicata which embraces not only all matters litigated but also all relevant issues which could have been raised and decided, including the issue of jurisdiction (Angel v. Bullington, 330 U. S. 183; Heiser v. Woodruff, 327 U. S. 726; Sherrer v. Sherrer, 334 U. S. 343; Connolly v. Bell, 286 App. Div. 220, mod. 309 N. Y. 581; Pray v. Hegeman, 98 N. Y. 351). In view of what we attribute to the decision by the highest court of Vermont appellant’s proper approach to the issue of due process was by appeal to the Supreme Court of the United States rather than by a collateral attack on the divorce decree of Vermont in the courts of this State.
If there is some doubt that the doctrine of res judicata is applicable the same result may be arrived at upon the theory of waiver. When the defendant thereafter moved in the courts of Vermont to have the judgment of divorce set aside, and for permission to set up as' a defense his judgment of divorce obtained in the State of Florida as a bar to plaintiff’s cause of action, he waived any issue of personal jurisdiction. His appearance therein was not a special appearance, designed only to contest the jurisdiction of the courts of Vermont by reason of a change in the original cause of action pleaded against him, but quite to the contrary was for affirmative relief to further contest the action on another ground. An appearance must be either general or special. If general it constitutes a waiver of any issue of jurisdiction (2 Carmody on New York Practice, § 749 and cases therein cited).
Both the doctrine of res judicata and waiver are based in principle on estoppel, and upon the theory of either or both plaintiff is now estopped from denying validity to the Vermont personal judgment so far as full faith and credit in this State is concerned.
The judgment should be affirmed, with costs.