About Grossman Isaac LLP

Jerrod Grossman is Co-Founder and Partner at Grossman Isaac LLP. He is known for his calm, direct advocacy in high-conflict family law cases and has appeared at all levels of Ontario’s courts, including the Ontario Court of Justice, Superior Court of Justice, Divisional Court, and the Ontario Court of Appeal. His trial, appeals, and litigation experience make him a formidable choice for clients facing complex disputes.

Jerrod’s practice includes urgent parenting motions, property division, and financial matters involving business owners and high-value assets. He is recognized for building tailored legal strategies that balance strong representation with pragmatic solutions.

A lifelong advocate for teamwork and perseverance, Jerrod coaches his son’s hockey and baseball teams and has taken part in the Ride to Conquer Cancer, experiences that mirror his commitment to guiding others through challenges with focus and determination.

Diana Isaac is Co-Founder and Managing Partner of Grossman Isaac LLP. She leads the firm’s growth and strategic direction while representing clients in complex family law matters. Known for her clear, calculated approach, Diana regularly appears before all levels of Ontario’s courts, including the Ontario Court of Justice, Superior Court of Justice, Divisional Court, and the Ontario Court of Appeal. Her trial and appeals experience makes her a trusted advocate in high-stakes litigation.

Diana has extensive experience representing business owners, self-employed professionals, and clients with multiple corporations or complex financial portfolios. She is particularly skilled in matters involving property division, spousal support, and intricate parenting arrangements.

Her commitment to advocacy extends beyond the courtroom. Diana is an active participant in the annual run supporting the Canadian Breast Cancer Foundation, reflecting her dedication to community causes and the values that guide her work with clients.

Michael practices exclusively in family law, handling all aspects including parenting, child and spousal support, and property division — from straightforward matters to complex, high net worth cases. He approaches his work with empathy and compassion, recognizing the sensitive nature of family disputes, while advocating passionately for his clients.

Dedicated to clear communication, Michael takes pride in making complex legal concepts understandable and in developing creative, practical solutions for difficult family law challenges. Since being called to the bar in 2016, he has worked with several prominent Toronto law firms and has built a reputation for his holistic and client-focused approach.

Michael graduated Magna Cum Laude with a Bachelor of Fine Arts (BFA) from the University of Ottawa/L'Université d’Ottawa in 2012 before completing his law degree at Osgoode Hall Law School in 2015. While at Osgoode, he volunteered with the Family Law Project, served as a research assistant for family law professors, and completed the Mediation Clinical Intensive program. He has published articles in the Toronto Lawyer’s Association Law Journal on emerging family law issues and contributed to the LexisNexis Practical Guide on Separation Agreements. Outside of work, he enjoys traveling, exploring Ontario’s wine country, and cooking at home.