Notary Public · Chicago & Chicagoland · Mobile Available
Notary Public in Chicago
We provide licensed Illinois notary public services for affidavits, powers of attorney, estate documents, real estate instruments, and contracts, performed in strict compliance with the Illinois Notary Public Act (5 ILCS 312). Our work is professional, accurate, and discreet, with mobile notary service available across Chicago, Cook County, and DuPage County. This service pairs with licensed Process Server Chicago work, professional Witness Statements Chicago collection, and full Family Law Investigator Chicago support.
Authority that matters: our licensed Illinois notary public is commissioned under the Illinois Notary Public Act, 5 ILCS 312, and operates as part of a state-licensed private detective agency under 225 ILCS 447 — Agency #117.001922, Detective #115.002750.
Supreme Investigations PLLC provides licensed Illinois notary public services in Chicago and across Chicagoland under the Illinois Notary Public Act, 5 ILCS 312. Every document is handled accurately, professionally, and with full confidentiality. We serve individuals, attorneys, businesses, and families — including mobile notary visits to homes, offices, hospitals, and care facilities across Cook County and DuPage County. Appointments typically take 15 to 20 minutes. Se habla español.
Notarial Acts We Perform
An acknowledgment confirms that you signed a document voluntarily and are the person you say you are. It is required for deeds, powers of attorney, and many legal instruments under Illinois law.
A jurat involves administering an oath or affirmation and witnessing your signature. It is required for affidavits, sworn statements, and court-related documents in Illinois.
Oaths and affirmations are formal declarations of truth, used in depositions, governmental filings, and sworn affidavits where a signature alone is not sufficient.
Where permitted under the Illinois Notary Public Act, we certify that a copy is a true and accurate reproduction of the original.
Common Document Types
How It Works
Call, text, or submit an online intake. Tell us your document type and preferred location — in-office or mobile. Same-day appointments are available upon request.
Bring valid government-issued photo ID and your unsigned document. Ensure all required signers are present. Do not sign before the appointment.
We verify your identity, administer any required oath or affirmation, witness your signature, and complete the Illinois notarial certificate accurately.
Your document is stamped with the official Illinois notary seal and returned to you. Most appointments take 15 to 20 minutes. Mobile appointments are billed with a travel fee.
Pre-Appointment Checklist
From the Loop and downtown Chicago to Cook County suburbs and the wider Chicagoland region, we provide responsive, professional notary service when it matters most.
Frequently Asked Questions
Related Services
Ready to Schedule?
Call or text to confirm availability — most appointments are available same day or next day. Mobile service is available across Chicagoland.