About Me

Cathy M. Wong, Your San Francisco Bay Area Local Mobile Notary and Loan Signing Agent

Champion Mobile Notary services South San Mateo County and Santa Clara County, since 2006

As a full-time commissioned mobile notary public and loan signing agent, I travel to your office, home or any other convenient location for all your notary public needs. Champion Mobile Notary service is just a phone call away.

Call Me At: (650) 290-3550 or (408) 355-3700

I work with local and national businesses, wealth management companies, attorneys and individuals. 

I notarize documents for estate planning, domestic and international business, patent assignments, advance healthcare directives, power of attorney, travel consent letters, leases, pensions and retirement accounts, proof of life, domestic and international child adoption, and many other types of documents. I am familiar with the Apostille and Authentication requirements with the California Secretary of State.

For a professional, experienced, detail-oriented, reliable mobile notary call me for your next notary signing appointment in the Mid-Peninsula, Silicon Valley, or South Bay, South San Mateo County and Santa Clara County in the San Francisco Bay Area.

I look forward to working with you!


  • Notary Public since 2006
  • Certified Loan Signing Agent since 2006


  • Notary Public, State of California
    • Background Checked by Dept. of Justice, State of California
    • Background Checked by FBI
  • Certified Signing Agent, Association of Professional Signing Agents
  • Notary Signing Agent, National Notary Association
  • Bonded 
  • Insured Errors & Omissions Insurance $1,000,000



  • BA Degree, Economics, University of California, Davis, CA
  • AA Degree, Business Administration, Fresno City College, Fresno, CA

It’s always a sheer pleasure working with Cathy of Champion Mobile Notary. She is always on time! By far, the best mobile notary public I have worked with during my years in the mortgage business. She possesses a strong ability to relate well with clients and put them at ease along with being highly thorough and efficient at the task of notarizing loan documents. Also, her attention to detail is amazing! On top of it Cathy is a very friendly person which shows in her interactions with her clients.”
Shawn S., Mortgage Advisor, Brighton Mortgage Advisors, San Jose, CA 95134


(Approved Notary Lists, title companies require)