184 MacDonell Ave.
Toronto ON  M6R 2A7
Tel: (416) 537-1337
Fax: (416) 538-4398
Email: marilyn.nairn@sympatico.ca

Primary Jurisdiction


Arbitration Practice

In practice (full-time) since 1998.


Bar of Ontario, Law Society of Ontario, 1982; LL.B., 1980, University of Ottawa; B.A.(Econ.), 1977, University of Winnipeg.


Ontario Labour Relations Board, Counsel, 1987-89; Ontario Nurses’ Association Arbitration Officer, 1982-87.

Standard Fees for Cancellation

Notification received more than 30 days prior to hearing or when cancelled date replaced with another hearing, administrative charge of $350; notification received 30 days or less prior to hearing, $1,650; where expedited arbitration is conducted under applicable labour relations legislation, $900 if cancelled prior to legislated day of hearing.

Lists and Panels

Ontario Ministry of Labour; Maksons Hospitality Inc. and UFCW, Local 175; Baffin and Unifor, Local 2003E; Vice Studio Canada Inc. and Canadian Media Guild; President Place Ltd. and UFCW, Local 175; Sleep Country Canada Inc. and Workers United Canada Council; FS Tool Corporation and United Steel; University of Toronto Schools and OSSTF; TDSB and CUPE Local 4400; Canadian Film and Television Production Association and ACTRA (Independent Production Agreement); Toronto Star Newspapers Ltd. and Teamsters, Local 100M; FS Tools Corporation and United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union, Local 3-26; Pharma Plus Drugmarts Ltd. and UFCW, Local 175; University of Toronto and CUPE, Local 3902; Real Canadian (No Frills) Wholesale Club and UFCW, Local 175; City of Toronto and CUPE, Local 79; Kenora Association for Community Living and OPSEU; Municipal Property Assessment Corporation and OPSEU.

Related Adjudication Experience

Roster Arbitrator, Grievance Settlement Board, October 2001-present; Alternate Chair, Grievance Settlement Board, 2018-present; Vice-Chair, Public Service Grievance Board, January 2015-present; part-time Vice-Chair, Ontario Labour Relations Board, 1998-2001; full-time Vice-Chair, Ontario Labour Relations Board, 1989-1998 (including construction industry division; referee/adjudicator, Employment Standards Act, 1996-1998; adjudicator, Occupational Health and Safety Act, 1996-1998); part-time grievance arbitration (consensual only), 1992-1998.


National Academy of Arbitrators; Ontario Labour Management Arbitrators’ Association (Past President and Executive Member).

Arbitration Awards on CanLII

For Arbitrator Nairn’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.