David focuses his practice on construction, surety, and fidelity related claims on behalf of construction companies, sureties, and fidelity carriers. His practice also includes litigation of general commercial and regulatory claims and actions. Colleagues Patrick Pike, Partner, and Eric Korphage, Partner work alongside David to provide these services to the practice, along with a full Construction and Surety team of professionals.

Recognition and Involvement

Recognition & Involvement

He has written extensively on surety, fidelity and construction-related issues including co-authoring “Surety Bonds and Insurance in the Construction Industry,” “Arbitration of Construction in Commercial Cases” and “Maryland Construction Law: What Do You Do When…?”

David has been recognized for his work as Lawyer of the Year, Best Lawyers® in America, Litigation – Construction in Baltimore, 2021, and by Best Lawyers® in America, Construction Litigation & Municipal Litigation, 2013-2024.  Mr. Gilliss is an AV Rated Attorney as listed in Martindale-Hubbell, 1999-2022, and he has been recognized by Super Lawyers as a Maryland Top 100 Lawyer, 2014 – 2016, and 2019 – 2023, and by Super Lawyers as a Top Rated attorney in both Surety Law and Construction Litigation, 2008-2023. David has been recognized by Chambers USA Guide 2023 as a top Construction attorney in Maryland.


Bar and Court Admissions


U.S. District Court District of Maryland

U.S. Court of Appeals for the Fourth Circuit

U.S. District Court for the District of Columbia

U.S. Court of Federal Claims

U.S. Supreme Court


University of Maryland School of Law, JD, 1985

College of Wooster, BA, 1980

News & Insights


Maryland State Bar Association

Baltimore County Bar Association

American Bar Association, Fidelity and Surety Law Committee

Defenses Research Institute

Mid-Atlantic Surety Association

Philadelphia Surety Claims Association

Chicago Surety Claims Association

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