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Mary Ellen Cummings

Mary Ellen Cummings

13264 Tenth Line, R.R. #5
Georgetown ON  L7G 4S8
Tel: (905) 877-7013
Fax: (905) 877-6745
Email: maryellen@hbwi.ca
View availability

Primary Jurisdiction


Arbitration Practice

In practice since 1999; also active in federal jurisdiction; bilingual.


1985, LL.B., Queen's; 1982, B.A., McMaster.


Alternate Chair Ontario Labour Relations Board (1998-2008); Part-time member, Public Service Staff Relations Board (2004-2009); Vice-Chair, Pay Equity Hearings Tribunal, 1989-1995; Associate, Mathews, Dinsdale and Clark, 1987-1989; Vice-Chair (part-time) Workers' Compensation Appeals Tribunal, 1992-1997.

Standard Fees for Cancellation

Notification received one month or more prior to hearing date, no charge; Notification received 1-4 weeks prior to hearing date, $1000; Notification received less than one week prior to hearing date, $1,600; if date of cancelled hearing used for another hearing, no charge.

Lists and Panels

Ontario Ministry of Labour; Gerdau Ameristeel and USWA Local 6571 collective agreement; Toronto Police Services Board and Toronto Police Association-Civilian collective agreement as job evaluation referee; ACTRA and Canadian Film and Television Producers Association; OPSEU and Community Colleges - support; CUPE Local 3902 and University of Toronto; University of Ottawa and OSSTF; Vale Inco and USW Local 6500.

Related Adjudication Experience

Vice Chair and Alternate Chair of the Ontario Labour Relations Board, (1997 to present); Member (part-time), Public Service Labour Relations Board (2004-2009); Chair, Pay Equity Hearings Tribunal (2000-2008); Chair, Employment Equity Tribunal, 1995-1996; Vice-Chair (part-time), Workplace Safety and Insurance Appeals Tribunal (1994-1997).


Ontario Labour-Management Arbitrators' Association, Board Member.

Arbitration Awards on CanLII

For Arbitrator Cummings's awards on CanLII, click here. Note: CanLII, the Canadian Legal Information Institute, offers free access to the full text of recent awards by this arbitrator.

Arbitrators are invited to send awards to decisions@lancasterhouse.com. In an effort to facilitate access to justice, Lancaster House forwards all awards it receives from arbitrators to CanLII.