Education
L.L.B., University of Notre Dame and Southern Methodist University, Phi Delta Phi, 1963

B.S., College of the Holy Cross, 1959

Admissions
Texas

U.S. Supreme Court

U.S. Fifth Circuit Court of Appeals

U.S. District for the Northern, Eastern, Southern and Western Districts of Texas

Contact
dsullivan@sullivanholston.com
Tel 214.528.9560
Fax 214.528.9581
vcard
G. Dennis Sullivan (P.C.)
Managing Partner
Dennis Sullivan, a founding partner of Sullivan & Holston, a partnership of professional corporations, is an AV-rated lawyer with more than 45 years of experience serving clients' legal needs in the areas of mediations, civil trial and appellate matters in the state and federal courts. His areas of practice include probate and surety law, Church law, creditor's rights, bankruptcy, business and commercial transactions and he has extensive trial experience in the areas. He serves as General Counsel to Dallas Southwest Osteopathic Physicians, Inc. and is former General Counsel to the Roman Catholic Diocese of Dallas.

Mr. Sullivan is a member of the American Bar Association, State Bar of Texas and Dallas Bar Association, where he serves in the Appellate Law, Bankruptcy and Commercial Litigation, and Probate, Trusts and Estate sections as well as the Senior Mentor Program. He also is a Fellow in the State Bar Foundation and a member of the College of the State Bar of Texas.

A native of Elmira, New York, Mr. Sullivan has been active in the Dallas community since graduating from law school at SMU. Currently he is the president of the Holy Cross Club of North Texas and a member of the Safe Environment Advisory Council at St. Thomas Aquinas Catholic Church. He is a former chairman of the Dallas Bar Association Fee Dispute Committee, district governor of Serra International, president of the Serra Club of Dallas, and a former board member of Catholic Charities of Dallas, Inc. and the St. Thomas More Society. Additionally, Mr. Sullivan has served as chair of the St. Thomas Aquinas Parish Council, president of the St. Thomas Aquinas Holy Name Society and as a member of the STA Parents Association and Ursuline Academy Parents Board.

Mr. Sullivan has litigated complex civil cases in federal and state courts on behalf of entities and individuals.

Some notable representation in civil and church matters includes:

  • Representation as general counsel to the Roman Catholic Diocese of Dallas:

  • Sharp v. Roman Catholic Diocese of Dallas, 97 S.W.3d 793 (Tex. App. Dallas 2003, pet. denied), successfully protected books and records from conversion by outside party.

  • Probate and Surety:

  • Old Republic Surety Co. v. Bonham State Bank, 172 S.W.3d 210 (Tex. App. —Texarkana 2005, no pet.), set aside an agreed judgment as an alteration of the terms of the surety bond.

  • Old Republic Surety Co. v. Palmer, 5 S.W.3d 402 (Tex. App. —Texarkana 1999, pet.), establishing surety's right of enforcement of indemnity agreement against guardian.

  • In re Rasco, NCM, 552 S.W.2d 557, (Tex. Civ. App. —Dallas1977, no writ), established the right of a bonding company as an interested party to participate in and challenge final accounts relative to liability.

  • Motor Vehicle Dealer Bonds:

  • Gramercy Ins. Co. v. Arcadia Fin., Ltd., 96 S.W.3d 320 (Tex. App.—Austin 2001, pet. denied).

  • Gramercy Ins. Co. v. Auction Finance Co., 52 S.W.3d 360 (Tex. App.—Dallas 2001, pet. denied).

  • Gramercy Ins. Co. v. Arcadia Fin., Ltd, 32 S.W.3d 402 (Tex. App.—Houston [14th Dist.] 2000, no pet.).

  • Lawyers Surety Corp v. Riverbend Nat'l Bk, 966 S.W.2d 182 (Tex. App.— Ft. Worth 1998, no pet.), a case of first impression , establishing bonding company's rights and defenses against banks' claims on Motor Vehicle dealer bonds.

  • Federal Cases:

  • In re Tri-City Health Centre, Inc.,
    71 Fed. Appx. 441 (5th Cir. 2003).

  • Gillum v. Gillum 273 F.3d 393
    (5th Cir. 2001).

  • Figgie Int'l v. Bailey, 25 F.3d 1267
    (5th Cir. 1994).

  • Mack v. Newton, 737 F.2d 1343
    (5th Cir. 1984).

  • In re Penneyrich, 473 F.2d 73
    (5th Cir. 1984), 21 A.L.R. Fed 277.
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