Our People

Meet Our Team

Select a team member below to learn more about them!

Erroll Treslan Portrait

Erroll Treslan

After practicing with Atlantic Canada’s largest law firm in St. John’s and Halifax, Erroll relocated to Owen Sound in 1999 with his wife Elaine. After visiting the area, they decided that the Scenic City offered the perfect blend of recreation and small-city charm for their growing family. Erroll concentrates his practice in the areas of…

Jill Sampson Portrait

Jill Sampson

Jill is a reliable legal advisor whose guidance has helped hundreds of businesses and individuals navigate their legal matters with ease. Jill joined the firm as an associate in 2016, and became a partner in 2022. Prior to that, she grew up in the Toronto area. Jill attended the University of Windsor and obtained a…

Lucas Tannahill

Lucas Tannahill

Born and raised in Owen Sound, Lucas long dreamed of becoming a lawyer in the Scenic City.  He graduated from Brock University in 2015 with Honours in Political Science and a Minor in German (2015), and completed the Integrated Practice Curriculum at Lakehead University’s Bora Laskin Faculty of Law (2019).  He summered with Bruce Grey…


Shannon Wallace

Shannon joined the firm in September 2023. She was born and raised in Stratford, Ontario, and moved to Ottawa to study in the Great Books program at Carleton University. She attended law school at the University of Toronto and articled at the Downtown Toronto Crown Attorney’s Office. She was called to the Bar of Ontario…

Madison Romanishen

Madison Romanishen

Madison Romanishen is a licensed paralegal practising in the areas of Small Claims, Landlord and Tenant, and Collections. Madison graduated with honours from Georgian College’s Law Clerk program and went on to obtain her paralegal education with honours from Georgian College. Madison joined The Alliance in 2022. Her recent education and fresh perspective are fostered…

Rob Robinson

A.E. (Rob) Robinson

Rob joined the firm in 1988 and has been a partner since 1991, with his practice focusing on business, real estate and municipal law. He is certified by the Law Society of Upper Canada as a Specialist in Corporate and Commercial Law. His clients include many local businesses. He also represents the County of Grey,…