How to Sign as Power of Attorney (Attorney-in-Fact) in California

If you’ve been given authority under a Power of Attorney (POA), you may be asked to sign documents on behalf of someone else. This role is called an Attorney-in-Fact.

Signing incorrectly can cause documents to be rejected, so it’s important to understand how to do it properly in California.

What Does Attorney-in-Fact Mean?

An Attorney-in-Fact is a person authorized to sign documents on behalf of another person (the principal).

You are not signing as yourself—you are signing on behalf of the principal.

How to Sign as Attorney-in-Fact

When signing under a Power of Attorney, your signature must clearly show:

1. The name of the principal

2. Your name

3. Your authority as Attorney-in-Fact

Correct Example:

John Smith, by Jane Doe, Attorney-in-Fact

or

Jane Doe, as Attorney-in-Fact for John Smith

Important: Do Not Sign Only Your Name

Incorrect example:

❌ Jane Doe

This can cause:

• rejection of documents

• delays in processing

• legal issues

Always indicate you are signing on behalf of someone else.

Does the Principal Need to Be Present?

No.

If you are properly authorized under a valid Power of Attorney:

• You may sign on behalf of the principal

• The principal does not need to be present

However:

• You must appear before the notary

Notarization Requirements in California

When signing as Attorney-in-Fact:

• You must present valid government-issued ID

• The notary will verify your identity

• The notary will notarize your signature, not the principal’s

The notary does not verify or interpret the Power of Attorney document—they only confirm your identity and witness your signature.

Should You Bring the Power of Attorney Document?

No — in many cases.

Some institutions or transactions may require:

• proof of your authority

• a copy of the Power of Attorney

While not always required for notarization, it is best to have it available.

Common Mistakes to Avoid

• Signing only your name

• Forgetting to include “Attorney-in-Fact”

• Pre-signing documents before meeting the notary

• Bringing incorrect or expired ID

Mobile Notary Services in Los Angeles

If you need documents notarized as an Attorney-in-Fact, Legit Notary Public offers mobile notary services throughout Los Angeles.

We can meet you at:

• Your home

• Office

• Hospital or care facility

Important Disclaimer

I am not an attorney and cannot provide legal advice.If you have questions about your authority under a Power of Attorney, please consult a qualified attorney.

Call to Action

If you’re signing as Attorney-in-Fact and need notarization, feel free to call or text 323-487-0207 to schedule a mobile appointment.