

Mobile Notary Services
Sigma Investigations offers fast, reliable, and mobile notary services throughout Northern California. Whether you’re finalizing legal documents, real estate forms, or sworn statements, we bring the notary to you—at your office, home, or anywhere in between. Our notaries are experienced, prompt, and understand the importance of accuracy, confidentiality, and convenience.
Acknowledgments
Used when a signer confirms they voluntarily signed a document, such as deeds, powers of attorney, or property transfers. The signer must personally appear before the notary, though they may have signed the document beforehand.
Oaths & Affirmations
A formal declaration that a statement is true. These are often required for depositions, legal testimony, or written statements being submitted to a court. Oaths involve a pledge to a higher power, while affirmations are secular.
Real Estate & Loan Signings
From purchase agreements to loan modifications and refinances, we handle complete notarization of real estate documents. Our mobile notaries ensure timely execution and return of all forms—often working directly with escrow or title companies.
Jurats
Required when a document must be sworn to or affirmed—such as affidavits or sworn declarations. The signer must appear in person and sign in front of the notary, who administers an oath or affirmation.
Copy Certifications
A notary verifies that a copy of a document is a true and accurate reproduction of the original. This is often used for passports, driver’s licenses, or other identification—but only when permitted by state law.
Custom & Mobile Notary Services
Have a unique or time-sensitive request? We provide tailored notarial services for attorneys, government agencies, medical professionals, and private clients. We’ll meet you where you are—home, office, hospital, or field.