Construction Law

Our legal foundations are firmly underpinned. We construct solutions.

We’ve built a legacy of expertise.

Sullivan Mahoney LLP is one of the only law firms in the Niagara region with a Certified Specialist in Construction Law (certified by the Law Society of Upper Canada – LSUC). Our construction lawyers provide timely, effective advice and services to individual, corporate and institutional clients including owners, project lenders, contractors, trades and suppliers.

With recent changes to the Construction Act, many clients look to us to assist with prompt payment issues and adjudication, while Niagara’s largest construction companies rely on the Construction Law Practice Group to resolve complex commercial and construction claims and disputes.


  • bidding or tendering
  • project bonding
  • posting lien security
  • breach of trust claims
  • contract negotiation & disputes
  • litigation
  • liens & holdback obligations
  • surety claims
  • prompt payment issues and adjudication

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