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About me

Lawrence M. Prosen is a construction and government contracts attorney with extensive experience in virtually all aspects of public and commercial/private contracting and construction projects.  


Larry has a B.S. in Architecture from the University of Maryland at College Park.  He has represented clients against many government agencies on claims, protests, payment and other disputes.  His experience includes claims for delay, loss of productivity/inefficiency, impacts, geotechnical/differing site conditions, changed conditions and other like matters.  Larry has represented clients in well over 100 protests at both the Federal and State/Local levels; has extensive experience in Davis/Bacon Act and Miller Act matters and has advised clients in many other aspects of government contracts.


He is also a member of the American Arbitration Association Construction Industry Panel of Arbitrators; has a Martindale Hubbell "AV" Ratings and was listed in the 2012 Chambers and Partners as an "Up and Coming" Attorney in Construction.


He also has extensive experience in advising clients in the various aspects of Small Business Administration issues, such as the 8(a) Program, Mentor-Protege and Size Standard issues and protests.


Practice areas


  1. Construction: 50%
    18 years, 200 cases
  2. Government Contracts: 40%
    18 years, 200 cases
  3. Real Estate: 10%
    17 years, 50 cases


Payment types:

Cash, Check

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Contact info

Thompson Hine LLP

1919 M Street, N.W.
Suite 700
Washington, DC, 200036


DCActive 199807/10/2016
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Finalist - "The Marvin P. Sadur Award" for Outstanding ServiceD.C. Metropolitan Subcontractors Association2005
Work experience
TitleCompany nameDuration
Arbitrator/NeutralAmerican Arbitration Association2009 - Present
PartnerK & L Gates2009 - Present
Attorney at lawBell, Boyd & Lloyd LLP2003 - 2009
Attorney at lawBell, Boyd & Lloyd PLLC1998 - 2003
Attorney at lawBraude & Margulies, P.C.1997 - 1998
Law Clerk/InternBraude & Margulies, P.C.1995 - 1997
Association namePosition nameDuration
Associated Builders & Contractors of Metropolitan Washington, D.C.D.C. Legislative Chairman2006 - Present
The Builders' BallGeneral Counsel & Member, Organizing Commitee2005 - Present
American Bar AssociationMember1998 - Present
American Bar AssociationMember1997 - Present
District of Columbia BarMemberN/A
Professional organizations and associationsN/AN/A
Legal cases
Case nameOutcome
Protest of PM Services CompanyProtest denied
See all legal cases 
Publication nameTitleDate
Building WashingtonBuyer/Contractor Beware - Major Decision Effects Contractors Performing Work on Condominiums2008
Building Washington, volume 21, number 2, published by Dawson Publications, Inc.Major Changes to DC Mechanic's Lien Law Provide Simpler, More Reasonable Protections2006
Author & Proponent - District of Columbia Mechanic's Lien Amendment Act of 2005District of Columbia Mechanic's Lien Amendment Act of 20052005
Federal Government Construction ContractsChapter 22 "Subcontracting"2003
UnknownInternt Meets the Legal World: A Guide to UCITA (Uniform Computer Information Technology Act)2000
UnknownOSHA Liability and Indemnification: The Inequities of Requiring Subcontractors to Indemnify Prime Contractors1999
UnknownChapters on Washington, D.C., Maryland, Virginia and Federal LawsN/A
UnknownChaptes on States of Maryland, Virginia, District of Colubmia and Federal GovernmentN/A
Goverment Contracts - Cyclopedic Guide to Law, Administration, ProcedureContributing Author & Associate Article for 18 Volume TreatiseN/A
Government Contracts - Cyclopedic Guide to Law, Administration, ProcedureAuthor - Quartely Update/NewsletterN/A
Government Contracts - Cyclopedic Guide to Law, Administration, ProcedureAuthor - Quartely Update/NewsletterN/A
School nameMajorDegreeGraduated
Catholic University of America, School of LawLawJD - Juris Doctor1997
University of Maryland, College ParkArchitectureOther - Bachelors1994
University of Maryland, College ParkHistory (subspecialty in U.S. History)BA - Bachelor of Arts1994
Speaking engagements
Conference nameTitleDate
Lessons Learned - The Post Mortem of a CaseHow to avoid protracted litigation - a case study2008
CLEGoverment Contracts - the Basics2008
Claims & Delays - Your Rights & How to Protect ThemRecognition and prosecution of delay and impact claims and preservation of rights2008
Superintendents' AcademySixteen Files for Project Success2007
Project Managers' AcademyContracts & Claims: Your Rights and How to Protect Them2007
Superintendents' AdademySixteen FIles for Project Success2006
Superintendents' AcademySixteen FIles for Project Success2006
Project Managers' AcademyClaims & Delays: Your Rights & How To Protect Them2006
Participant, Roundtable Discussion on Economic Price Adjustment ClausesEconomic Price Adjustment Clauses2006
Bond & Lien Rights & ProtectionsBond & Lien Right Protections2006
Webinar - Education SeriesDelays & Claims: Your Rights and How To Protect THem2005
Bond & Lien Rights and Protections SeminarBond & Lien Rights2005
Associated Builders & Contractors of Metropolitan Washington, D.C. - SBE CommitteeContract Clauses & Documents for Small & Minority Businesses - What to Look Out For2005
8th Annual Industry Roundtable - ModeratorGeneral Construction & Contract Discussion2005
Illinois Construction Law SymposiumWho's Going to Pay for My Work - Surviving the Project in Default2000