¶1Appellant and his wife, as tenants by the entirety, owned an apartment building in the District of Columbia. On September 13, 1955, they were sued by appellee for wrongful eviction. The wife was personally served and service on the husband was made by leaving copy of the summons and complaint with the wife at her home in the District, as his “usual place of abode.”
¶2*184 At the hearing appellant gave evidence, which we think was conclusive, that he was not and never had been a resident of the District, and that he had no usual place of abode therein. Accordingly the attempted service by leaving a copy with his wife at her home was not valid service on him. However, such defective service is immaterial if appellant entered a voluntary appearance through counsel. With respect to this point the evidence is not conclusive.
¶3According to appellant he knew nothing of the action against him until after judgment was entered, and his first knowledge of it was acquired from his wife when he visited her about July 10, 1956. On the other hand, he admitted he visited his wife on possibly eight occasions while the action was pending. The trial court may have concluded that it was inconceivable that the wife did not on any of those occasions inform her husband of the pendency of the action and that an attorney had been engaged to represent them.
¶4According to the wife she engaged Mr. Platshon but informed him that her husband was not a resident of the District, and she never advised her husband of the action until after trial and judgment. Her testimony is considerably weakened by the fact that on a deposition before trial she testified her husband was in Europe, whereas he testified he had not been outside the United States during the past five years.
¶5Mr. Marshall, the second attorney in the case, stated that when he came into the case he assumed that he was representing both husband and wife, but he never met the husband until after trial, and that when the action was pending he inquired about the husband but the wife invariably replied that he was out of town.
¶6Significantly, we think, the record contains no affidavit or statement by Mr. Platshon, the attorney who first purported to act for appellant and his wife. If this attorney’s appearance for appellant was not authorized in the first instance and was never ratified, the court had no jurisdiction to enter judgment against appellant.
¶7The presumption is that an attorney-at-law who appears in regular manner on behalf of a party litigant has authority to do so. Booth v. Fletcher, 69 App.D.C. 351, 101 F.2d 676, certiorari denied 370 U.S. 628, 59 S.Ct. 835, 83 L.Ed. 1511. This presumption is not conclusive, but it can be overcome only by substantial proof in the form of countervailing evidence. Booth v. Fletcher, supra. See also Abraham v. Shinberg, 88 U.S.App.D.C. 306, 190 F.2d 595. It has been said that such proof must be clear and satisfactory. Jones v. Burgett, 221 Ark. 866, 256 S.W.2d 325. When the authority of an attorney is challenged the issue is one for determination on the evidence. Mullins v. LaBahn, 244 Wis. 76, 11 N.W.2d 519; Wilson v. Barry, 102 Cal.App.2d 778, 228 P.2d 331; Gagnon Company v. Nevada Desert Inn, 45 Cal.2d 448, 289 P.2d 466.
¶8It was for the trial court to determine whether appellant’s evidence success*185fully rebutted the presumption of Mr. Plat-shon’s authority, and we cannot hold that the trial court was in error in ruling as it did.
¶9Affirmed.
¶10. Municipal Court Civil Rule 4(c) (1).
¶11. “The Supreme Court has consistently treated a judgment based upon an unauthorized appearance for a defendant by an attorney as a nullity.” In re Retail Chemists Corporation, 2 Cir., 66 F.2d 605, 608.