We represent individuals in complex and sensitive civil and criminal cases.

About Us

At Osseiran Law, we are a small but formidable team committed to delivering strategic, resilient, and fearless legal representation. With a strong foundation in criminal defence and civil litigation, we take on complex matters involving insurance companies, financial institutions, and government actors. Whether in the courtroom or at the negotiation table, our clients benefit from the synergy between sharp legal insight, creative advocacy, and a deep commitment to justice.
We bring together decades of legal experience, international exposure, and a relentless drive to protect and assert our clients’ rights. Our boutique structure means personalized service, direct access to counsel, and a team that treats every case as a priority. What we lack in size, we make up for in results.

Ceren Kurt

Principal Lawyer

Marwan is a barrister licensed in Ontario and called to the Bar of England and Wales as a UK solicitor.

Marwan has practiced criminal defence and civil litigation for over 19 years, with experience before trial and appellate courts in Ontario and as a Visiting Professional at the International Criminal Court in The Hague.

Fluent in English, French, and Arabic, Marwan is well-positioned to serve a diverse client base and navigate multilingual legal settings, both domestically and internationally.

Strategic

Relentless

Client-Focused

Results

No Charges Against Client

Dismissals

Sentencings

Day-to-Day Practice

International Law & Counterterrorism

Locations

Toronto

ADDRESS

First Canadian Place

100 King Street West, Suite 5700

Toronto, ON, M5X 1C7

Ottawa

ADDRESS

1 Rideau Street

7th Floor

Ottawa, ON, K1N 8S7

Locations

Toronto

ADDRESS

First Canadian Place

100 King Street West, Suite 5700

Toronto, ON, M5X 1C7

Ottawa

ADDRESS

1 Rideau Street

7th Floor

Ottawa, ON, K1N 8S7

Contact

Fill out the form below to schedule your appointment. We’ll get back to you soon!

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OSSEIRAN

We are committed to fearless advocacy, strategic litigation, and principled representation, no matter the size of the challenge or the power of the opponent.

Lawyers Advertising. Prior results do not guarantee a similar outcome.

logo

OSSEIRAN

We are committed to fearless advocacy, strategic litigation, and principled representation, no matter the size of the challenge or the power of the opponent.

Lawyers Advertising. Prior results do not guarantee a similar outcome.

logo

OSSEIRAN

We are committed to fearless advocacy, strategic litigation, and principled representation, no matter the size of the challenge or the power of the opponent.

Lawyers Advertising. Prior results do not guarantee a similar outcome.