About Deer Park Family Law

Deer Park Family Law is a solo Toronto practice run by Renata Kirszbaum, who works exclusively in family law and child protection matters. The office is on Yonge Street in Deer Park, the neighbourhood the firm is named after, and the practice describes itself as serving clients across Toronto and the GTA. Kirszbaum earned a Bachelor of Science with honours from the University of Toronto in 1982, a law degree from the University of Toronto Faculty of Law in 1985, and was called to the Ontario bar in 1987.

The practice covers divorce and separation, parenting arrangements (what used to be called custody and access), property division, child support, and spousal support, plus disputes that involve a Children's Aid Society. On its site, the firm says it has guided hundreds of people through divorce proceedings. Its child support work includes tracing income a paying parent hasn't disclosed, including obtaining bank records when needed. For property division, the firm draws a distinction between the equalization rights of married spouses and the more limited, harder to establish rights of common law partners. The stated approach is client centred: decisions rest with the client, and representation is described as firm but fair, aimed at swift, equitable outcomes.

Practice areas

Good to know

A professional woman in a suit beside a briefcaseWoman-ownedA rainbow pride heartLGBTQ+ friendlyA calendar with a checkmark beside a clockBy appointmentAn office interior with a desk and chairsIn-person services

The neighbourhood

The office sits on Yonge Street in Deer Park, the midtown Toronto neighbourhood centred on the intersection of Yonge Street and St. Clair Avenue. Its boundaries run from the Vale of Avoca ravine in the east to Avenue Road and Oriole Parkway in the west, a mix of low rise apartments, offices, and small businesses along Yonge itself with quiet residential streets behind it. It's a fitting base for a family law practice, a walkable, established midtown community rather than a downtown highrise district, within reach of the neighbourhoods across Toronto and the GTA the firm says it serves.

Frequently asked questions

Does Deer Park Family Law handle divorce and separation cases?
Yes. Divorce and separation is a core part of the practice, and the firm says it has guided hundreds of people through the process, from negotiated settlements to matters that go to court.
Can the firm help sort out parenting time and decision making after a separation?
Yes. The firm handles what used to be called custody (now decision making responsibility) and access (now parenting time), and it can involve third party professionals to help bring a child's views into the process when appropriate.
What if a family law dispute also involves the Children's Aid Society?
The firm takes on child protection matters alongside its family law work, including disputes with the other parent, extended family, or a Children's Aid Society.
Will the firm look into whether a former partner is hiding income before calculating child support?
The firm says it's possible to obtain bank records and other financial information to check that a paying parent has fully disclosed their income, and to have income imputed where that disclosure hasn't happened.
How does spousal support get determined?
The firm explains that before an amount or duration can be set, entitlement has to be established first, on a compensatory basis, a non-compensatory basis, or a combination of the two.
Is property division the same for married and common law couples?
No. The firm notes that equalization of property is a right built into marriage, while common law partners face additional hurdles to any claim on shared wealth, which it describes as a nuanced area of law.

Where to find them

1650 Yonge Street, Suite 203, Toronto Ontario, M4T 2A2 · 416-755-6661

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Listing compiled from the firm’s public website in August 2026. Verify licence status in the Law Society of Ontario directory ↗