About Stewart House Teichgraf LLP

Stewart House Teichgraf LLP is a law firm based in St. Catharines, Ontario that traces its work in the Niagara Region back to 1984. Mark Stewart and Dave House combined their practices in 2012 to form Stewart House LLP, and the firm took its current name once Eric Teichgraf joined as a partner. It now runs from a head office on Church Street in St. Catharines and a second location in Beamsville.

The firm's practice covers corporate and business law, wills and estate planning, residential and commercial real estate, employment law, and commercial litigation. Stewart articled at one of Canada's national law firms on Bay Street, then joined Blakes in Toronto as an associate, before returning to the Niagara Region and later joining the St. Catharines firm Bench, Keogh. House studied at the University of Western Ontario and Osgoode Hall Law School, earning a J.D. and a master's degree in environmental studies in 1993, then practised litigation in Toronto and Vancouver before opening a St. Catharines practice in 2009. Before moving into law, Teichgraf spent several years in real estate management and financial services.

In the community

  • Mark Stewart has sat on several profit and nonprofit boards, coached minor hockey and soccer, and volunteered on church committees.
  • Mark Stewart has served as a special lecturer in Niagara College's Business Law Program.
  • Mark Stewart is a member of the Canadian Bar Association, the Ontario Bar Association, and the Lincoln County Law Association, and has served as director and president of a local political riding association.
  • Dave House is a former board member of the Lincoln County Law Association and previously served as a director of the West Lincoln Memorial Hospital Foundation.

Good to know

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Fees & payment

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Where to find them

31 Church Street, St. Catharines, ON L2R 3B7 · 905-321-5275

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This listing was generated by AI from public sources in September 2026. It may contain errors, and we can’t guarantee it’s accurate or complete. Before you rely on anything here, verify it on the firm’s own website. Verify licence status in the Law Society of Ontario directory ↗

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