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Philip R. Croessmann

Construction and development Attorney at Warrenton, VA

5.0   2 reviews

About Philip

Learn Philip’s areas of practice.

Practice areas
  1. Construction and development
    Claims for Equitable Adjustment, Change Orders, Differing Site Conditions, Mechanic Liens, Surety & Bonds, ADR, Litigation & Arbitration, A/E Professional Liability and Contracts

    40 years, 100 cases

  2. Business
    Mergers and Acquisitions, Ownership Transitions, Contracts, Entity Formation and Litigation.

    40 years

  3. Real estate
    Leases, Development Contracts, Financing and Zoning.

    40 years

Mr. Croessmann represents numerous architectural and engineering firms, environmental consultants, insurance companies and contractors in both simple and complex litigation.  He is also involved in providing a wide range of services that are tailored to the construction industry.  The services include contract negotiation, government contracting, business planning, risk management, ownership transition, and mergers and acquisitions. Further, Mr. Croessmann has been heavily involved in litigating insurance coverage disputes involving Superfund, environmental claims and construction defects. 


In addition to his legal practice, Mr. Croessmann co-founded the Matrix Design Companies where he currently serves as president of Matrix IMA an architectural firm specializing in forensic, litigation support and expert witness services and as a principal/general counsel of the Matrix Design Companies.  Previously, Mr. Croessmann also served as a lobbyist and deputy general counsel for the American Institute of Architects in Washington, D.C. Mr. Croessmann is also active in industry associations.  He is a member American Institute of Architects and was on the Board of Directors and the 2004 President of the Northern Virginia Chapter of the AIA. He is active in the Associated Builders and Contractors of Virginia and the American Bar Association’s Construction Fourm. He has also served as an arbitrator for the American Arbitration Association and is actively involved in alternative dispute resolution


Representative Cases:

·         Negotiated a Construction Management at Risk contract with a public agency for construction of a 100 million dollar Water Treatment Plant in Florida.

·         Prepared and assisted in negotiating several claims and change orders under a design build contract on an 87 million dollar modernization of a waste water treatment plant in Tacoma Washington.

·         Drafted and pursued a delay and inefficiency claim against the Maryland State Transportation Authority.

·         Defended an architect in a claim involving the observation tower on the Woodrow Wilson Bridge in Washington D.C.

·         Defended a structural engineer in a claim by the Argentine Navy for settlement damage caused by sheeting and shoring system in Washington D.C.

·         Successfully defended a Securities Fraud case in U.S. District Court and the subsequent appeal in the U.S. Court of Appeal.

Licensed for 41 years
State VA
Status Authorized to Practice Law
Acquired 1987
Updated 10/01/2022
State DC
Status Good Standing
Acquired 1981
Updated 06/08/2022
State NY
Status Currently Registered
Acquired 1981
Updated 03/11/2010
State WA
Status Inactive
Acquired 1987
Updated 11/25/2022

We have not found any instances of professional misconduct for this lawyer.

Contact Philip

Westberg Croessmann & Warren, PC
7331 Wilson Road
Warrenton, VA, 2oi86
Philip R. Croessmann
PO Box 14652
Irvine, CA, 92623
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5.0 / 5.0
  2 customer reviews
5 Star
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1 Star
Posted by David | May 25, 2010
Excellent attorney
Phil has helped our architecture firm as a trusted legal adviser for the last 11 years. He has represented us in a variety of legal and business dealings and has provided overview of all our written contracts. We depend on his unique knowledge and background in both architecture and law to advise us in the complex world of design and construction. issues.
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Posted by Chris | May 12, 2010
Great Attorney
Phil has been my attorney for 12 years and have been 100% on the money. He also has become a good friend, and will go the extra mile for a client. He has both defended and pursued various cases over the years and has done a superb job. He is reasonable with his fees, and many times overlooks the nickel/dime stuff. He is a cool customer on the outside, but can really turn up the heat during depositions/meetings/court etc. Will also point you in the right direction if there is an issue or case that may not suit his expertise. Highly recommend using Phil Croessmann..
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  • Free Consultation 60 minutes
  • Hourly Rates $ 165-330 per hour
  • Contingency 25%-33%


AVVO RATING 7.3 (Very Good)

Work Experience

  • Managing Principal
  • Westberg Croessmann & Warren, PC
  • 2004 - Present
  • Partner
  • Bastianelli Brown & Kelly, Ltd
  • 2000 - 2004
  • Attorney
  • Kasimer & Ittig
  • 1996 - 2000


  • Syracuse University College of Law
  • JD - Juris Doctor
  • 1981
  • University of Oregon
  • B.Arch
  • 1979


  • American Institute of Architects
  • N/A
  • American Bar Association
  • N/A
  • Associated Builders and Contractors
  • N/A
  • American Arbitration Association
  • N/A
View all associations

Languages Spoken

  • English


  • Distinguished Leadership
  • American Institute of Architects - Northern Virginia Chapter
  • 2004
  • Recognition of Service to the Chapter
  • American Institute of Architects - Northern Virginia Chapter
  • 1998


  • AIA / Los Angeles, 2006 and SMPS/PSMA National Conference, 2008
  • Profit by Design - Mergers and Acquisitions as a Strategy for Growth
  • 2008
  • Lorman Education Services publication
  • Building Codes in Virgina
  • 2008
  • CMAA National Convention, 2008
  • Managing the Risks of Design and Construction Defects
  • 2008
  • Lorman Education Services publication
  • How Design Documents can Prevent or Cause Construction Claims in Virginia
  • 2006
  • National Electrical Contractors Association 95th Convention, 1996
  • Maximizing Your Insurance Coverage
  • 1996
  • AIA Build Virginia Regional Convention, 1996 and Professional Environmental Marketing Association, 1997
  • Negotiating The Contract Without Killing The Deal
  • 1996
  • Virginia Environmental Council, 6th Annual Convention, 1995
  • The Application of Strict Liability for Work Practice Standards
  • 1995
  • AIA SW WA Chapter, 1994 and CEC/MW, NOVA AIA 1998
  • DPIC Contract Review Workshop
  • 1994
  • Heavy Construction Contractors Association, 1994
  • Partnering Seminar
  • 1994
  • American Society for Quality Control, AEC Division, 1994
  • TQM and Design/Build: Controlling Liabilites
  • 1994
  • Wiley Law Publications
  • "Ownership Transition." Design Professional's Handbook of Business and Law
  • 1993
  • Wiley Law Publications
  • "Design Build" and "Partnering," Construction Joint Ventures
  • 1993
  • Co-Author, Wiley Law Publications
  • Construction Litigation Formbook
  • 1991
  • Northwest Design Seminar, 1991
  • How Much Are We Worth?
  • 1991
  • National Asbestos Council, N.W. Reg. Conference, 1990
  • Strategies for Managing Asbestos Liability in the 1990s
  • 1990
  • CSI Regional Conference, 1989-1990, and Build Virginia AIA Regional Convention, 1996-1997
  • Gettting Paid
  • 1989
  • 28th Annual Invited Attorneys Meeting sponsored by CNA Insurance Co., AIA and NSPE 1989
  • Defending Architects & Engineers in Asbestos Litigation
  • 1989
  • ACEC Guidelines to Practice
  • Recordkeeping Guide for Design Firms
  • 1985
View all publications

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Warrenton Construction and development Lawyer Philip R. Croessmann
Philip R. Croessmann
Construction and development Attorney
Warrenton, VA
Licensed for 41 years
Free Consultation