David Osorio

Cell: (925) 285-4165
Fax: (855) 638-8384

Cell: 925-285-4165

Fax: (855) 638-8384

2333 San Ramon Valley Blvd, Suite 495
San Ramon, CA 94583

David Osorio

Loan Officer

NMLS #255243

Thank you for visiting Home Loan Officer David Osorio’s personal company web page at Mason-McDuffie Mortgage Corporation. ​ 

A Bay Area fixture in the real estate industry for over 130 years, Mason-McDuffie Mortgage is a privately-owned Mortgage Banker direct lender with headquarters in San Ramon, CA. David is part of the San Ramon retail lending branch team and has 25 years of experience as a residential Loan Officer. He holds a National Mortgage Lending License (#255243) and a California Real Estate Broker License (#01066752).
David enjoys assisting customers to find the best mortgage product available. His greatest strengths are his experience and his ability to analyze product advantages and disadvantages.  David enjoys his job immensely, particularly building long-term customer relationships and processing loans efficiently and effectively.

Please feel free to contact David anytime you have a question about qualifying and rates for our mortgage loan programs to purchase or refinance a home.