Ivan J. Derer, K.C.
About Ivan J. Derer, K.C.
Ivan J. Derer, K.C. is a lawyer based in Calgary, AB and has been recognized in The Best Lawyers in Canada™ since 2008. Ivan J. Derer, K.C. is recognized in the following practice area:
- Calgary, Alberta
- Alternative Dispute Resolution
Current Firm: Derer Law
Location: Calgary, AB
It takes just a few minutes to optimize your profile for clients looking to engage and lawyers who are ready to refer.
Activate your profile and highlight why your peers recognized in Best Lawyers today.
Nearby Lawyers
Emily is a dedicated and effective problem-solver. She is a lawyer in Gowling WLG’s Calgary office, and an experienced and successful litigator. Emily represents clients at all levels of courts and tribunals in Alberta, and in mediations and alternate dispute resolution. Her practice focuses on corporate and commercial litigation, and medical defence. Emily is an empathetic and trusted advisor and a loyal advocate for her clients, with an emphasis on finding practical solutions to compl...
Dana attended the University of Toronto, receiving her Bachelor of Arts degree (Honours) before attending the University of Saskatchewan, receiving her Bachelor of Laws degree in 1992. Dana was called to the British Columbia bar in 1993 and practiced in Vancouver with the well-respected law firm, Hammerberg Lawyers LLP, after spending the early part of her career as in-house counsel. Dana successfully completed transfer examinations and was called to the Alberta bar in 2001, moving to Calgary...
Glenn now practices in the areas of administrative law and civil litigation, focusing on corporate, commercial and contract litigation (including corporate and securities disputes, oil and gas litigation, contract disputes, commercial landlord and tenant disputes, land disputes, employment litigation and debt collection), wills and estates litigation, Securities Act and Alberta Securities Commission proceedings, Judicial Review hearings, real estate litigation, serious personal injury, profes...
Erin J. Baker is a top attorney recognized by Best Lawyers in the practice area(s) of Labour and Employment Law and Legal Malpractice Law. Erin J., who practices law in Calgary, Alberta, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Erin J. is held by other top lawyers in the same geographic and legal practice area.
Aaron has a diverse practice with a focus on Wills, Trusts, and Estates. He has extensive experience in estate planning, administration, and dispute resolution. His practice also includes business law and real estate law. Aaron is a recognized thought leader in the application of The Surrogate Rules and complicated court applications, which helps him generate positive, timely results for his clients. He shares his knowledge with colleagues and the public through teaching and speaking roles. C...
Erin J. Runnalls is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and Commercial Litigation, Health Care Law and Medical Negligence. Erin J., who practices law in Calgary, Alberta, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Erin J. is held by other top lawyers in the same geographic and legal practice area.
Alex Kotkas is Managing Partner of the Alberta Region, with primary responsibility for leadership of the Firm’s Calgary and Tsuut’ina offices. As Regional Managing Partner, Alex manages the region's operations while developing and executing its strategic direction. His leadership focuses on cultivating a supportive environment that prioritizes exceptional client service, drives innovation, and nurtures outstanding talent. Alex is the founder and former leader of the Firm’s L...
Brian Milne practises in the areas of Canadian tax and charity law. Mr. Milne regularly advises public and private businesses and their investors on acquisitions, financing, cross-border structuring and the design of employee compensation plans. He also frequently advises charitable and non-profit organizations on a wide range of matters, including charitable gifting and the structuring of developments using charitable assets.Mr. Milne has served as a director of the Canadian Petroleum Tax So...
Stacy was born and raised in Calgary, Alberta. She was the Managing Partner of JSS Barristers from 2015 to early 2018. She joined JSS Barristers as their first associate over 20 years ago after articling with a major Calgary law firm. Stacy's practice focuses on civil, corporate and commercial litigation, including professional negligence. She also has experience in class actions and insolvency. Stacy has appeared at every level of the Alberta courts and has conducted and assisted with numero...
Tim is peer ranked as one of the top labour and employment lawyers in Canada. For over 25 years, Tim has advocated for federally and provincially regulated employers on matters related to workplace law. He acts as lead counsel on significant labour, employment, and workplace human rights cases, including in matters that have been elevated to the Supreme Court of Canada. Tim sets a new standard for employer advocacy. His commitment to building trusting relationships through counseling employer...
Explore and Learn
Recognizing Legal Leaders: The 2027 Best Lawyers Awards in Australia, Japan and Singapore
by Jamilla Tabbara
Market drivers, diversity trends and the elite practitioners shaping the legal landscape.
Holiday Pay Explained: Federal Rules and Employer Policies
by Bryan Driscoll
Understand how paid holidays work, when employers must follow their policies and when legal guidance may be necessary.
Can a Green Card Be Revoked?
by Bryan Driscoll
Revocation requires a legal basis, notice and the chance to respond before status can be taken away.
How Far Back Can the IRS Audit You?
by Bryan Driscoll
Clear answers on IRS statutes of limitations, recordkeeping and what to do if you are under review.
Musk v. Altman: The Lawyers Behind the Case
by Jamilla Tabbara
Meet the Trial Lawyers Shaping One of AI's Biggest Legal Disputes.
Can You File Bankruptcy on Credit Cards
by Bryan Driscoll
Understanding your options for relief from overwhelming debt.
US Tariff Uncertainty Throws Canada Into Legal Purgatory
by Bryan Driscoll
The message is clear: There is no returning to pre-2025 normalcy.
The Legal Teams Behind the Blake Lively–Justin Baldoni Settlement
by Grace Greer
A closer look at the legal teams and attorneys involved in the Blake Lively–Justin Baldoni litigation and its resolution.
How AI Is Changing the Way Clients Find Lawyers
by Jamilla Tabbara
Best Lawyers CEO Phil Greer explains how AI-driven search tools are reshaping legal marketing and why credibility markers matter.