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Mobile Notary Public & Apostille Services

Prismark Signature Services logo

 

ABOUT PRISMARK SIGNATURE SERVICES


Prismark Signature Services is a Los Angeles-based private-client document signing, mobile notary, and authentication company serving individuals, families, attorneys, escrow and title professionals, businesses, and clients with domestic and international document needs.


What began with professional real estate and loan signings has grown into a broader document services company handling mobile notarizations, estate planning signings, hospital and healthcare appointments, jail and detention signings, apostille and document authentication, translation support, and specialized document coordination throughout Los Angeles and beyond.


Prismark is built around a simple standard: Professional. Reliable. Responsive.


Every assignment is approached with careful preparation, clear communication, discretion, attention to detail, and respect for the importance of the documents being signed.


Whether the appointment takes place at a home, office, escrow company, hospital, detention facility, restaurant, or another convenient location, the goal is to create an organized, professional experience for the client.


For documents traveling beyond California, Prismark assists with apostille and authentication matters and coordinates domestic and international document needs.


The company also maintains the growing Prismark Resource Library, with practical guides covering notary services, apostilles and international documents, estate planning, real estate signings, hospitals and healthcare, jail and detention facilities, and other specialized document situations.


Prismark has completed hundreds of real estate and private-client signing assignments and has earned 200+ five-star Google reviews. The company is supported by professional training, background screening, bonding, and $1 million in Errors & Omissions insurance.

John F. Heinz California-commissioned, bonded, and insured Notary Public. Certified in loan signings, estate documents, and apostille facilitation.
Great Seal of the State of California
National Notary Association red triangle logo
National Notary Association red triangle logo
Certified Notary Public signing agent seal
Loan Signing System logo with pen emblem

ABOUT JOHN F. HEINZ

Prismark was founded by John F. Heinz, a California commissioned Notary Public and National Notary Association Certified Notary Signing Agent with advanced training in loan signings, estate planning signings, apostille processing, and document authentication.

 

Before founding Prismark, John spent more than 35 years in television production and directing, including approximately two decades with CBS/Paramount. That career required preparation, discretion, clear communication, complex logistics, and the ability to remain calm when deadlines mattered — the same professional standards he brings to Prismark today.

 

Based in Los Angeles, John works with clients throughout Southern California and coordinates document matters for clients across the United States and internationally.

John speaks Spanish and French and has studied several other languages, reflecting the international experience and cultural adaptability he brings to Prismark’s diverse clientele.

Signature Services for Life’s Most Important Documents

Prismark Signature Services logo

Principles That Define Our Services

Accuracy

Every document is carefully reviewed with attention to detail throughout the signing process.

Professionalism

Every assignment is approached with preparation, discretion, reliability, and professional presentation.

Trust

Confidentiality, integrity, and clear communication are at the heart of every client relationship.

Responsiveness

Timely communication and flexible scheduling help keep important document matters moving.

California notary training book and pen

Experience, Integrity, and Care in Every Detail

At Prismark, we provide professional document signing, notarization, and authentication services built around preparation, reliability, discretion, and personal attention.

Here’s what sets us apart:

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Translation Services

Through our trusted international partners, we provide certified, notarized and sworn translations in over 150 languages.

All translations are USCIS-approved.

Real Estate Signings

Extensive experience handling loan signings and real estate transactions, every appointment is conducted with professionalism, accuracy and attention to detail.

From buyer and seller packages to refinance and commercial transactions, clients can expect responsive communication and on-time document delivery.