Notary Guide
Notary vs lawyer vs commissioner of oaths in Ontario
Not sure who you need? Here is exactly what a notary public, a commissioner of oaths, and a lawyer can each do in Ontario — and which one is right for your document.
What is the difference between a notary, a commissioner of oaths, and a lawyer?
In Ontario, a commissioner of oaths administers oaths and takes affidavits; a notary public does that and also certifies true copies and notarizes documents for use abroad; a lawyer does everything a notary can plus gives legal advice and representation. For witnessing signatures or certifying copies, a notary public is faster and cheaper than a lawyer.
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Notary public vs commissioner of oaths vs lawyer: comparison
A side-by-side look at what each professional can do, when to use them, and the typical cost in Brampton, Ontario.
| Role | What they can do | When you need them | Typical cost |
|---|---|---|---|
| Notary public | Witnesses signatures, certifies true copies, administers oaths, and notarizes affidavits and statutory declarations. | Certified copies, travel consent letters, documents used abroad, and paperwork that specifically asks for notarization. | $35 for the first document; $80 for a will or POA (Brampton Notary Public). |
| Commissioner of oaths | Administers oaths and affirmations and takes affidavits and statutory declarations. Cannot certify true copies. | Government forms, pension and insurance affidavits, and statutory declarations used within Ontario. | Often included in the same visit; from $35 (Brampton Notary Public). |
| Lawyer / paralegal | Gives legal advice, drafts and interprets contracts, and represents you in legal matters. Many lawyers are also notaries. | When you need legal advice, a document drafted, or representation — not just a signature witnessed. | Varies widely; typically billed hourly or by matter. |
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Which one do I need?
Choose a notary public when a document asks to be "notarized," when you need a certified true copy, or when the document will be used outside Ontario or Canada.
A commissioner of oaths is enough when an Ontario government form only needs an oath, affirmation, or statutory declaration commissioned.
See a lawyer or paralegal when you need legal advice, a contract drafted or reviewed, or representation — a notary cannot advise you on legal matters.
Please note: Brampton Notary Public provides notary public and commissioner of oaths services only. We are not a law firm and do not provide legal advice. If you are unsure whether you need legal advice, please consult a licensed lawyer or paralegal.
FAQ
Notary, commissioner, and lawyer: common questions
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