Douglas LaSota is a member of the firm's Professional Liability Department where he focuses his practice on the representation of owners, contractors, design professionals, suppliers and sureties in private and publicly-funded projects, the prosecution of mechanic's lien claims, regularly prosecutes and defends claims for contract funds, change orders, labor inefficiencies, delays, and other direct and indirect costs. In addition, he has extensive experience in the preparation and revisions of contracts for domestic and international projects. He has served as both an arbitrator and mediator of consruction disputes involving owners, design professionals, and contactors. He has represented contractors on bid protests on public projects regulated by procurement statutes. He also represents clients in environmental litigation, including class action suits alleging ground water contamination and landfill suits alleging improper acceptance, classification and disposal of liquid wastes. He also represents clients in OSHA and MSHA litigation. In addition to Douglas’s experience and background in construction and engineering, he is also practiced in general commercial litigation matters, real estate law and surety law litigation.
Prior to attending law school, Douglas worked for a Fortune 500 manufacturer as a plant engineer and production superintendent, with responsibility for capital improvement projects and plant expansions. After becoming an attorney, Douglas continued to leverage his engineering background toward his practice, and he previously served as the chair for the Allegheny County Bar Association’s Construction Law Section. He is also active in real estate law and has served on his community’s zoning board.
In 1987, Douglas graduated from West Virginia University with a B.S. in Industrial Engineering and then received his juris doctor from Duquesne University School of Law in 1997. He is admitted to practice before the Supreme Court of Pennsylvania, Superior Court of Pennsylvania, United States District Court for the Western District of Pennsylvania, United States Court of Appeals for the Federal Circuit, U.S. Court of Appeals for the Third Circuit and United States Court of Federal Claims. Additionally, he maintains a AV Distinguished Peer Review Rating from Martindale-Hubbell.
Honors & awards
AV Preeminent by Martindale-Hubbell
The Best Lawyers in America, Litigation - Construction; Mass Tort Litigation/Class Actions - Defendants
2024-2026
Year joined
2014
Thought Leadership
98 Marshall Dennehey Attorneys Recognized in the 2026 Editions of The Best Lawyers in America and the Best Lawyers: Ones to Watch in America
August 20, 2025
Marshall Dennehey is proud to highlight the firm’s 98 attorneys who have been recognized in the 2026 editions of The Best Lawyers in America and the Best Lawyers: Ones to Watch in America. Less than 6% of all practicing lawyers in the U.S.
