Debbie Sundlie


Senior Loan Officer

NMLS #247830

401 Davis Street
Vacaville, CA. 95688

Office: (707) 564-3159
Cell: (510) 697-7448
Fax: (866) 363-7845
Email Debbie

Apply Online


Debbie Sundlie has been a Loan Officer for Mason-McDuffie Mortgage Corporation since 2008. Previously, she worked for CU Funding and Valley Funding. 

As a Loan Officer serving Veterans and first time homebuyers in the Solano Place, Contra Costa and Alameda areas, Debbie enjoys assisting customers to realize their dream of home ownership and utilizing the best loan product for their individual needs.

Debbie’s success as a Loan Officer is supported by her client first attitude, combined with a passion for watching client's dreams come true.

Debbie’s greatest strengths are her experience and commitment.

Debbie brings 20 years experience in the Mortgage field to her work as a Loan Officer.

She holds the CALVET, CALHFA and STRS certifications.

Debbie lives in Roseville and in her spare time she enjoys spending time outdoors hiking, biking, skiing and gardening.

Click HERE to learn more about the Debbie Sundlie Team!

What my clients are saying…

Dear Debbie, Gina and Rusty, I Just wanted to say thank you and let you guys know how amazing and awesome you are! SpaceI got into buying a house hearing how long it took and how hard it was and all of these other horrible stories and I was honestly dreading the process. But… you guys and all your hard work made it one of the most enjoyable things I've ever done.  From Gina driving us around and putting up with our random texts, emails and calls at random hours, to Rusty answering the random hundred questions we asked and helping us understand the paperwork cause we had no clue what the heck we were doing! To Debbie e-mailing and handling things ON HER VACATION! I really just wanted to say thank you.  It means so much to me.  My grandfather just recently passed but because you guys were so efficient and amazing at what you do I had the chance to be able to show him pictures and share with him the fact that I bought my own house. That means more to me then even having this amazing house, It really really helped me feel better at a horrible time.  SO for all those things Again I want to say thank you, you guys are AWE-SOME! I will be throwing your names out to anyone and everyone looking to Buy/Sell houses or looking for a loan. I can't say it enough and you don't know how appreciative and grateful I am for everything. THANK YOU. Joseph Guerrero 



Mason-McDuffie Mortgage Corporation

2430 Camino Ramon
Suite 300
San Ramon CA. 94583

Phone: 925-242-4400
Fax: 866-743-0260
Toll-Free: 877-ASK-MMMC (877-275-6662)


Licensed by the Department of Business Oversight
under the California Residential Mortgage Lending Act. NMLS# 1141
NMLS Consumer Access Site