Making a Will in Sarnia, Ontario
Last updated 2026-06 · Ontario
Sarnia, about 72,000 residents at the foot of Lake Huron, is a border and petrochemical city with many industry workers and cross-border ties to Michigan. Cross-border assets are worth coordinating in your plan.
What a valid will requires in Sarnia
Ontario's Succession Law Reform Act requires a will in writing, signed at the end, and witnessed by two adults present together who don't benefit. You must be 18 and capable. A fully handwritten holograph will is valid without witnesses; fully electronic wills aren't clearly recognized — sign on paper.
Probate and cost in Sarnia
Sarnia estates are probated at the Ontario Superior Court of Justice for Lambton County (Sarnia). The Estate Administration Tax is about 1.5% above $50,000 — roughly $14,250 on a $1,000,000 estate. If you hold U.S. assets, get cross-border advice; otherwise, beneficiary designations and joint tenancy reduce the probated estate.
If you die without a will in Sarnia
A married spouse takes the first $350,000 plus a share; a common-law partner inherits nothing. Cross-border and blended families benefit from a will that coordinates assets.
Getting started
Simple Ontario-only estates can use a reputable online will signed with two witnesses; cross-border or complex estates should see a lawyer. Add Powers of Attorney for Property and Personal Care.
Frequently asked questions
How much does a will cost in Sarnia? A simple lawyer-drafted will is usually a few hundred dollars; online wills cost less. How much is probate in Sarnia? About 1.5% above $50,000 — roughly $14,250 on a $1M estate. What if I own property in Michigan? Get cross-border advice — a single will may not be enough.
Not legal advice. General information about Ontario law as of 2026. Confirm specifics with a Sarnia estate lawyer.
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