About Avantis Law

Avantis Law is a small practice founded in 2014 by principal lawyer Kaveh Behyar, who was called to the bar in Ontario that year and added a British Columbia licence in 2019. Behyar holds an LLB from the University of Kent (2010) and a BAS in management from York University (2006), and worked at Marzel Law representing licensed producer clients in the cannabis sector before opening the practice. The firm's work centers on residential and commercial real estate, Canadian immigration for students and family sponsorship, landlord and tenant matters, private lending, and cannabis licensing covering cultivation, processing, and retail.

The firm's site describes itself as based in Thornhill with satellite offices in Mississauga, downtown Toronto, and Oshawa. The address it publishes for client meetings is Suite 200 at 5200 Yonge Street in North York, and its real estate work reaches across the Golden Horseshoe, from Toronto and Mississauga to Hamilton, Oakville, Newmarket, and Aurora. Rather than requiring clients to come to the office, the firm meets people at their own home or workplace for signings and closings. Its law clerk, Parastoo Haeri, holds a Law Clerk diploma from Seneca College (2017) and has worked in real estate and financial services.

Milestones & recognition

  • Founded in 2014 by principal lawyer Kaveh Behyar.
  • Behyar was called to the bar in Ontario in 2014 and in British Columbia in 2019, giving the firm licence to practice in both provinces.
  • Before founding the firm, Behyar worked at Marzel Law representing licensed producer clients in the cannabis sector.

Good to know

A person using a wheelchairWheelchair accessibleA calendar with a checkmark beside a clockBy appointment

Fees & payment

A clock beside gold coins with a dollar signHourlyA price tag with a dollar signFlat feeA clipboard with a speech bubble and a no-charge dollar coinFree consultation

The neighbourhood

Avantis Law's listed office is Suite 200 at 5200 Yonge Street in North York. Rather than asking clients to travel there for every meeting, the firm built its real estate practice around visiting people at their own home or workplace to sign documents and close deals, a model that fits a stated service area spanning the Golden Horseshoe: Toronto, Mississauga, Brampton, Hamilton, Oakville, Oshawa, Newmarket, and Aurora. For a small firm handling immigration and real estate files across that many municipalities, coming to the client is as much a practical necessity as a courtesy.

Frequently asked questions

Can Avantis Law handle a home purchase or sale in the Greater Toronto Area?
Yes. The firm's real estate practice covers residential purchase and sale, mortgage refinancing, and closings for newly built homes and condos, and it describes its service area as running across the Golden Horseshoe, from Toronto and Mississauga to Hamilton, Oakville, Newmarket, and Aurora.
Does Avantis Law help sponsor a family member's immigration application?
Yes. The firm's immigration practice covers Express Entry and family sponsorship applications, alongside study permit work for students entering secondary, undergraduate, or graduate programs in Canada.
Is Avantis Law licensed to practice outside Ontario?
Yes. Principal lawyer Kaveh Behyar was called to the bar in Ontario in 2014 and in British Columbia in 2019, so the firm can act for clients in both provinces.
Does Avantis Law take on landlord and tenant disputes?
Yes. The firm advises both landlords and tenants on residential and commercial tenancy agreements and represents clients when those disputes end up in a legal proceeding.
Will someone from the firm meet me instead of my having to visit the office?
For real estate files, yes. Avantis Law offers to meet clients at their own home or workplace for signings and closings rather than requiring a trip to the North York office.
Does Avantis Law advise on cannabis licensing?
Yes. The firm advises on medical and recreational cannabis matters, including cultivation, processing, quality control, and retail licensing, drawing on the founder's earlier work representing licensed producer clients.

Where to find them

Suite 200 - 5200 Yonge Street, North York, ON M2N 5P6 · 647-886-3000

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