Karl J. Gross

Contact Info

Areas of Practice

  • Employment
  • Construction
  • Real Estate
  • Civil Litigation
  • Business and Commercial


Columbia University, M.S.
Suffolk University Law School, J.D
Fairfield University, B.A.


Commonwealth of Massachusetts
U.S. District Court, District of Massachusetts
United States First Circuit Court of Appeals
Supreme Court of the United States 




Karl is a partner in the firm of O’Reilly, Grosso, Gross & Jones, P.C., with a practice concentration in the areas of public and private construction, commercial law, real estate development and employment law including litigation, arbitration and mediation of disputes. 

Karl is an experienced trial attorney representing plaintiffs and defendants in state and federal court and administrative agencies.

In the field of construction, Karl has represented general contractors, their sureties, subcontractors and developers/owners in major building construction and highway building projects, disputes involving design issues, delays and contract interpretation in public and private projects (commercial, heavy/highway, industrial, institutional, residential), lien law claims, public bidding and bond matters.  He has provided seminars and lectures on construction law topics for members of the Associated General Contractors, the Construction Industries of Massachusetts, Massachusetts, various construction trade groups and construction industry organizations.

In the field of employment, Karl has represented employers and employees in employment discrimination/wrongful discharge in the areas of race areas of race, age, sex, retaliation, non-compete disputes, whistleblower, severance and wage claims.

In the field of real estate, Karl has represented developers, real estate purchasers, owners and landlords in contractual disputes for commercial and residential properties including transactional work.

In the fields of commercial litigation and other areas, Karl has represented various public and private companies in general business matters, transaction, sale and acquisition work and ERISA fund litigation.