The firm was formed in 1993 by the merger of two of North Bay's oldest and most prestigious law firms, Wallace & Carr and Klein & Klein. This merger brought together law practices established by George Wallace and Albert Klein, both respected and prominent local lawyers.

George Wallace, a North Bay native whose father and grandfather ran the local brickyard and were contractors, commenced practising law in North Bay in 1936 with the firm Reynolds & Wallace. In 1949 he took over the practice of the late John McColeman. With the exception of his years in the Canadian Forces during World War II, he continued practicing for 55 years until his death in February 1992.

George's accomplishments include Q.C. in 1951, Bencher of the Law Society from 1971 to 1979, Judge of Juvenile and Family Court and Provincial Court Family Division from 1958 to 1987, Life member of the Canadian Bar Association, Life member of the Advocates Society, Life member of the Law Society of Upper Canada. In 1992, George was named one of the first recipients of the prestigious Law Society Medal for outstanding service to the legal profession.

Albert Klein, also a North Bay pioneer, was called to the Bar in 1954 and took over the practice of the late Judge H. J. Reynolds, eventually building the Klein firm to prominence in North Bay. He received his Q.C. in 1967 and practised in North Bay until his death in the Fall of 1991.

Over the years the Wallace firm has had many local lawyers associated with it including: Norm Nadeau, Dick Tafel, Jack Trussler, Danny Ferguson, Peter Picherack, Doug Woltz, Rodger Bowness, Russ Thompson, Lionel Rivet and Jamie Wilcox. Klein alumni include Ernie Loukidelis, Tom Farmer, Frank Falconi, Rob Martyn, Peter Rutland, Bill Sangster, Randy Thomson, Doug Thomas, John Rogers, Clemens Eggert and Jim Klein.

The firm was augmented by the addition of Bob Carr in 1951. He continued as a partner of the firm until his retirement in 1997. Jack Wallace joined the firm in 1971 and Don Wallace followed in 1975. Paul Trenker, another local boy, joined this talented group in 1989. After George Wallace's death in 1992, the firm moved to revitalize itself in order to continue to provide a high level of service to our clients. Larry and Jim Klein moved their busy practice to this firm in 1993.

After the merger of the two firms, other changes were made in 1994 when Ed O'Hagan, an experienced real estate and commercial lawyer joined us and in 1995 Alain Perron brought his skills and enthusiasm to the firm while also adding a bilingual dimension. Jamie Wilcox joined the firm in 1998 bringing the group to seven. In 2003 Gregory DuCharme joined the firm replacing Ed O'Hagan who had retired. Greg's practice in the areas of Taxation and Bankruptcy broadened the firm's services to its clients.

In 2006, Larry Klein was appointed Judge of the Ontario Court of Justice and left the firm to sit in the Parry Sound District. In 2007 Robert Martyn joined the firm as Counsel bringing more than 30-years’ experience in Real Estate, Corporate Commercial and Wills and Estates. In September of 2010 Jamie Wilcox was appointed Justice of the Superior Court of Ontario and sits in Haileybury, Ontario.

In 2011, Erin J. Lainevool joined the firm as a partner and brought a new dimension as an experienced criminal lawyer. The firm also launched a Paralegal Services division. After working in the legal field for many years, and with Wallace Klein Partners in Law LLP since 1998, Tracy Davis-Foreshew obtained the necessary credentials and became a licensed paralegal in 2010 and has re-joined the firm to provide a full range of paralegal services.

Alain Perron was appointed as Judge to the Ontario Court of Justice in 2012, sitting first in Parry Sound and now in North Bay. Greg Ducharme decided to pursue his dream of having his own office, and left us in 2014.

Talented lawyers came on board in 2013 with the addition of Christian Tremblay and Leigh Van Gorder. Christian is bilingual and practices corporate/commercial, real estate, wills and estates, and litigation. Leigh offers services in family law, wills and estates, and criminal defence. In 2014, we were pleased to welcome a new face to the firm when experienced family lawyer Michael Constable joined our team.

Wallace Klein now has eight legal professionals who provide complete multi-disciplinary legal services to the people of the Nipissing area. Our lawyers have considerable expertise in real estate, commercial law, criminal law, civil litigation, family law, construction law, and estate law matters. Services can be provided in French and English.