Canadian citizenship and immigration law firm

Citizenship runs in your family.

Our lawyers and in-house genealogist help families around the world claim Canadian citizenship by descent, including new claims under Bill C-3. We find the records, build the proof and file your application.

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Lawyers licensed by the Law Society of Ontario · Ottawa · English and French

Our services

Citizenship by descent

Claim Canadian citizenship through a parent or earlier ancestor, including under Bill C-3. Flat fee of $9,999 CAD for the first applicant, with research, records and government fees included.

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Express Entry

Become a permanent resident through Express Entry, based on your education, work experience and language skills.

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Judicial review

Challenge a refusal, or a file stuck in delay (mandamus), in the Federal Court. Fees are billed in published stages.

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Spousal sponsorship

Sponsor your spouse or common-law partner for permanent residence, whether they live in Canada or abroad.

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Reconsideration request

Ask the visa office to reopen a refused application, without going to court.

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Work permit

Get a work permit, with or without a Labour Market Impact Assessment (LMIA).

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Why clients choose us

We help families prove the Canadian citizenship they inherited and help people build a life in Canada. Here is who works on your file.

Five lawyers, a genealogist and a research team, all working on the same files.

Our lawyers have clerked at the Federal Court, decided claims at the Immigration and Refugee Board, served in Canada's foreign service and worked in the immigration groups of leading national firms. Kendra Gaede, our genealogist, chairs the Manitoba Genealogical Society's Research Committee and knows records from Quebec and Acadia to the Prairies. She leads the researchers who trace your family line and find the records that prove it.

Meet the team →

2012 to 2016

Cédric Marin, our founder, studies civil law and common law at the University of Ottawa.

2017 to 2022

He clerks at the Federal Court of Canada, decides refugee claims and appeals at the Immigration and Refugee Board, and earns a Master of Laws.

2023

He opens Marin Immigration Law in Ottawa.

2025

Bill C-3 comes into force, and many more families with Canadian roots can claim citizenship.

2026

Four associate lawyers, a genealogist and a research team join, and we move into our office at 280 Albert Street.

Today

About 15 people, in Ottawa and across Canada.

Read our full story →

See our results

Worn leather-bound volumes of Quebec court registers from the 1880s to 1908 lined up on an archive shelf

Montréal court registers, 1880s to 1908. Photographed by our team at BAnQ, August 2026.

Affiliations and memberships

How we work

Consult

Meet a citizenship and immigration lawyer for 30 minutes. We review your family tree, confirm whether you qualify, including under Bill C-3, and give you a clear legal strategy. See what to expect.

Consultations are booked first come, first served and the consultation fee is credited toward our flat fee if you retain us. Our next available consultation is currently within 5 business days (as of October 2026).

Research and prepare

You work with Cédric Marin and an associate lawyer, who prepare your forms and legal submissions.

On citizenship by descent files, our in-house genealogist traces your lineage and orders the records. See what sets us apart.

Review and file

A lawyer who has not worked on your file reviews it the way an officer would, then Cédric Marin signs off and we file with IRCC.

We cover the mailing, resubmit at no charge if IRCC returns the application as incomplete, and stay with you until a decision. Read our promise to clients.

The Marin Immigration Law team in the archive stacks at BAnQ in Montreal, as an archivist shows them a bound historical register

Our team with a BAnQ archivist, photographed during our visit to BAnQ in August 2026.

How we find your records

Most citizenship by descent claims turn on old records: births, baptisms and marriages, sometimes more than a century old. Our in-house genealogist and research team find them and prove each link in your family line.

We trace your line generation by generation and find the record that proves each link
We order the records for you and follow up until they arrive
We read French parish and civil records in the original
When a record is missing, we build the proof from other records

See how a claim works

200+

Citizenship applications

200+

Immigration applications

200+

Federal Court cases

Years in practice

All-time totals for Cédric Marin and Marin Immigration Law. Past results do not guarantee future outcomes.