Jennifer Costin

Jennifer’s 20-year legal career has been focused on providing practical, strategic and tailored workplace advice to employers. She has developed extensive expertise in conducting workplace investigations locally and across Canada and has regularly conducted investigations in the education, healthcare, government, manufacturing, IT, not-for-profit and retail sectors. Jennifer also provides training on harassment and discrimination, how to conduct internal investigations and behind the scenes support for internal investigations.

Jennifer was chosen by her peers as the Middlesex Law Association’s Rising Star in 2011, is regularly included as the Three Best Rated ® Employment Lawyers in London, Ontario and was chosen as a 2022 & 2023 Best Lawyers in Canada for Labour and Employment Law. Jennifer regularly writes and speaks about current legal workplace issues, always striving to partner and support employers in responding to the ever-changing legal landscape.

Law Society of Upper Canada, Member
Middlesex Law Association, Member

Jennifer Costin has been selected by her peers for inclusion in The Best Lawyers™ in Canada in 2022 and 2023.

Jennifer was selected by her peers to receive the 2011 Middlesex Law Association Rising Star award.

Jennifer speaks regularly to various groups on employment and labour topics and is always happy to do so. She speaks annually to various districts of the Excellence in Manufacturing Consortium and at Siskinds' annual client conference.

Jennifer was also an instructor at Fanshawe College for the Labour and Employment Course.

Jennifer is an active contributor to the Siskinds blog, found at www.siskinds.com/labour-employment-blog/.

Jennifer is actively involved with her community in the following ways:

• Golf Committee, Big Brothers Big Sisters of London & Area, Past Co-Chair
• Cooking for Kids Program, Past Member
• Fundraising Committee, Childreach, Past Member
• Southwest Optimist Soccer, Past Volunteer
• Board of Directors, Alzheimer Society of London and Middlesex, Past Member
• Human Resources Committee of the Board of Directors of St. Joseph’s Health Care, Past Member
• Association for the Elimination of Hate, Past Member, Board of Directors

• When should I hire a third-party investigator?
• The Ontario Court of Appeal weighs in on sexual harassment and just cause
• Can an employee’s involvement in the Freedom Convoy protests result in their termination of employment?
• Can employers require COVID-19 vaccinations?
• Conducting workplace investigations COVID-style
• Ontario’s new restriction framework and what that means for Ontario businesses
• Leaves, layoffs and terminations: COVID’s impact on Ontario’s workplaces
• The basics of the federal government wage subsidy programs
• Public holiday pay: Is your absent employee entitled to it?
• Under suspicion: Top 10 tips for conducting a workplace investigation
• What can you ask for in a medical certificate?
• Accommodation is a Two-Way Process
• Can an Employee Declare Frustration of the Employment Contract?
• How do the Mass Termination Provisions of Ontario’s Employment Standards Act, 2000, work?
• Is Bill 148 being scrapped in its entirety?
• Legalization of marijuana, set to take effect by October 17, 2018
• Do Employers Have Human Rights Obligations to Former Employees?
• Bill 148 Poised to Pass Today
• A costly lesson in how not to conduct a workplace harassment investigation
• Accessibility Obligations for Employers with Under 50 Employees