Guarantee Mortgage

We have helped Bay Area families finance their home purchase, with over $2 billion in loans annually, and we can help you.

Offering a wide range of mortgage products and services, Guarantee Mortgage is well prepared to meet every real estate lending need.

We have 22 years under our belt providing world-class client service. Our top priority is to make sure you are presented with all available loan options, so that you can make an informed decision, that’s right for your financial situation.

http://www.guaranteemortgage.com

Guarantee Mortgage NMLS #1850 and CAL-BRE License #01215943

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Recommendations (2070)

Yesterday

MB recommends John Joyce

Repeat customer (4 times I think) and would recommend him to anyone. Very easy to work with, handles business very promptly and answers any questions usually within minutes. His assistant Asa is on point.
Apr 3, 2020

Sharon Gray recommends Eric Fairfax

Home Owner

I have dealt with Eric for many years and he always gives his best service. He is thorough, pleasant, professional, effective, and efficient! He genuinely wants whats best for me. He's honest and smart! And he is NOT self-serving! I would definitely recommend him to everybody!
Apr 3, 2020

Lisa Acree recommends Guy Rivera

I strongly recommend Guy (along with Laurie and Vittoria) as a mortgage lender. Through working with the team I came to believe that Guy and his team had a lot of integrity and that they were on my side. There was one time when I asked Guy to lock down my rate and he recommended that I wait. Sure enough, the rate dropped and I ended up with a fantastic rate for my dream home. This was my first time getting a loan, and they patiently worked with me to get what was needed. They are a group you can trust.
Apr 1, 2020

Isabelle Duhalde recommends Mireille Costandi

Process was easy and clear

We hadn’t refinanced in awhile and it was something I was dreading based on our last experience with another broker. But Refinancing with Mireille, she made it super easy and her being very clear on what documents were needed and by when and explaining next steps and the process along the way was great . I never had a doubt on where we were in the process so no stress and that was a so very much appreciated!
Thank you Mireille!
Mar 31, 2020

Stacey Denning recommends Alan Kirth

He's Awesome!
Mar 31, 2020

D L recommends Annie Au-Yeung

Annie helped us with our re-financing. She was responsive, courteous, knowledgable and professional. She kept checking the rate for us in a daily basis and ensure we got the best deal out of the market. We have worked with other loan brokers and couldn't even get the rate she got us. We highly recommend her to everyone we know.
Mar 30, 2020

Dan Schoknecht recommends James W. Argo

Sr. Manager

Jim was incredibly responsive throughout the process & got us an amazing rate. We were working with Jim when the COVID-19 pandemic hit the US, and throughout the chaos of that time, Jim kept us informed and I always felt like he kept us a high priority. We got a beautiful home in a timely manner thanks to Jim & his team.
Mar 30, 2020

CJ Evans recommends Kathy Derangi

Editorial Director

Kathy moved heaven and earth getting our refinance done—dealing with all sorts of things that were out of any of our control with good cheer, but still forcefully moving things along. She was fantastic.
Mar 30, 2020

Kimberly Berger recommends James W. Argo

We had a fantastic experience working with Jim and his team. It was our first time buying a home and we were surprised at how smooth and stress-free the process was. He is clearly very experienced, and still takes the time to patiently spell each part of the process out for you if you need it. He and his team worked so hard to get us to close on time during the covid-19 crisis, and we really felt his care and compassion the whole way through. He's also just a fun guy to talk to!
Mar 27, 2020

DANIEL J SHARKEY recommends Kara Fiore

RETIRED

To tell you about Kara;s planning, efficiency and success would required a book. She is beyond five stars.
Mar 26, 2020

Linda Flynn recommends Pov Oum

Pov was extremely accessible and was always able to answer any questions I had. She was professional and friendly. I appreciated the level of service she delivered.
Mar 26, 2020

Jaramillo Fam recommends Alma Portillo

We give Alma 10 stars from beginning to end of the process she is on it. Hassle free, stress free, she guides you through the whole process in a way that doesn’t overwhelm you. Alma has helped us a couple times now and we love working with her and trust her very much. We have all the trust and confidence in the world that Alma will do the best to help us each time. Alma is absolutely amazing!
Mar 24, 2020

Barry Hooper recommends Gordon Friedman

Analyst, City of San Francisco

Gordon is extremely fast, capable and dependable. We've very much enjoyed working with him recently, and over the years, and he's consistently found excellent terms to meet our financing needs.
Mar 23, 2020

Dave O'Donnell recommends John Joyce

Owner Fairhill Global enterprises

John was exceptional. He quoted and delivered what he promised...what else need I say
Mar 19, 2020

Mike and Terry Brosnan recommend John Joyce

House Owners

John and Asa were extremely professional and responded to any questions that we had immediately! I would highly recommend! Awesome team!
Mar 19, 2020

Thomas Bloink recommends Vince Breen

Vince goes way beyond what most people are capable or willing to do. I would'nt think of going anywhere else. Vince is the BEST!
Mar 19, 2020

John recommends Audrey Boissonou

Great experience. She guided us at every step of the process. She was extremely responsive and kept us up to date and answered all of our questions. Would recommend without reservation
Mar 18, 2020

Zhen G recommends Annie Au-Yeung

Annie works relentlessly to deliver great service. She is willing to work around my schedule and is always prompt and responsive. Her Cantonese was especially helpful for me, as she perfectly led me through every step of the process.
Mar 18, 2020

Sarah recommends Annie Au-Yeung

Annie was very patient with us in every step of the process. She works very quickly and we are very pleased with her service. Her bilingual abilities are unmatched. I am lucky to have Annie as my loan officer!
Mar 18, 2020

Sonja recommends Joel Marks

Excellent service and easy process
Mar 14, 2020

Pete Y recommends Scarlet Kim

Easiest refi ever. Scarlet took care of us every step of the way and made sure we knew what to expect.
Mar 13, 2020

Jay Axe recommends Julie Malta

Technical Product Manager, Nvidia

Julie pulled off what seemed at the time to be the impossible. Here is some quick background. We were referred to her by our real estate agent, Alan Canas (both incredible people) for the pre-qualification process to start shopping for a home in Nov 2018. Julie recommended that we gather a lot of documentation up front as this would paint a clear picture what we could afford in a home and still live a happy and comfortable lifestyle. After the pre-qualification process, she urged us to keep our documentation up to date because you never know when you'll find the right home. And we did what she said. Fast forward to Feb 2020, we found our new home in a 100+ condo complex. This made things tricky, because we needed to close fast to hit an end of the month deadline to enroll our child in the local school district. All while everyone else wanted to close as well. To make this happen, Julie knew what to do and contacted all the relevant parties, and essentially told them how to get their jobs done. She was truly the quarterback that made the play!! We are thrilled to be in our new home with the peace of mind that our child is enrolled in school this fall. We owe a great deal to Julie, as she was available by phone, text, email every step of the way.
Mar 13, 2020

Jay Axe recommends Julie Malta

Technical Product Manager, Nvidia

Julie pulled off what seemed at the time to be the impossible. Here is some quick background. We were referred to her by our real estate agent, Alan Canas (both incredible people) for the pre-qualification process to start shopping for a home in Nov 2018. Julie recommended that we gather a lot of documentation up front as this would paint a clear picture what we could afford in a home and still live a happy and comfortable lifestyle. After the pre-qualification process, she urged us to keep our documentation up to date because you never know when you'll find the right home. And we did what she said. Fast forward to Feb 2019, we found our new home in a 100+ condo complex. This made things tricky, because we needed to close fast to hit an end of the month deadline to enroll our child in the local school district. All while everyone else wanted to close as well. To make this happen, Julie knew what to do and contacted all the relevant parties, and essentially told them how to get their jobs done. She was truly the quarterback that made the play!! We are thrilled to be in our new home with the peace of mind that our child is enrolled in school this fall. We owe a great deal to Julie, as she was available by phone, text, email every step of the way.
Mar 13, 2020

Joanne and Tom Knez recommend Sean Maley

Retired DDS

We have called on Sean twice for our mortgage needs. We enjoy Sean’s upbeat energy and rapid response to our many questions. We always trust him to find the best financing for our needs!
Mar 11, 2020

Balasubramanian Kumar recommends James W. Argo

Consultant

Jim is a great professional. From the very beginning he was forthright about the reams of paperwork demanded by lenders today. This made the process, if not palatable, somewhat easier to swallow. Other than the paperwork, he was very clear in his explanations of various options and scenarios and prompt in his responses. Thanks to Jim, I was able to quickly pivot from a clearly undesirable lender to a much better one in a matter of a week. So that we lost at most a few days in closing on the new loan. Thanks, Jim!

Our Team

  • Bob Siefert

    Senior Vice President - San Francisco - Montgomery St.
    NMLS #55105 / 1850 - CA BRE #00921214 / 01215943

  • Orlando Diaz

    Sr. Loan Consultant - San Francisco - Montgomery St.
    NMLS #238849 / 1850 - CA BRE #01475255 / 01215943

  • Foster Weeks

    Loan Originator - San Francisco - Montgomery St.
    NMLS #253370 / 1850 - CA BRE #01383598 / 01215943

  • Allan McAllister

    Loan Consultant - San Francisco - Montgomery St.
    NMLS #280540 / 1850 - CA BRE #01372084 / 01215943

  • Aisling Ferguson

    NMLS #280915 Loan Consultant - San Francisco
    NMLS #280915 / 1850 - CA BRE #01225420 / 01215943

  • Kevin Casey

    Loan Consultant - San Francisco - Montgomery St.
    NMLS #238192 / 1850 - CA BRE #01178612 / 01215943

  • Mireille Costandi

    Loan Consultant - San Francisco - Montgomery St.
    NMLS #249322 / 1850 - CA BRE #01132350 / 01215943

  • Ken Dean

    Loan Consultant - San Francisco - Montgomery St.
    NMLS #237940 / 1850 - CA BRE #0902556 / 01215943

  • Larry Horowitz

    Loan Consultant - San Francisco - Montgomery St.
    NMLS #239001 / 1850 - CA BRE #01003870 / 01215943

  • Amy Lai

    Loan Consultant - San Francisco - Montgomery St.
    NMLS #341535 / 1850 - CA BRE #01795977 / 01215943

  • Ming Leong

    Loan Consultant - San Francisco - Montgomery St.
    NMLS # 252471 / 1850 - CA BRE #01369831 / 01215943

  • Natasha Lovas

    Senior Mortgage Advisor - San Francisco - Montgomery St.
    NMLS #239455 / 1850 - CA BRE #01161948 / 01215943

  • Paul Rea

    Loan Consultant - San Francisco - Montgomery St.
    NMLS #280163 / 1850 - CA BRE #00856755 / 01215943

  • Cecelia Tyeskey

    Reverse Mortgage Specialist - San Francisco - Montgomery St
    NMLS #239861 / 1850 - CA BRE #01212004 / 01215943

  • Christopher Baker

    Sr. Commercial & Residential Loan Officer - Townsend Office
    NMLS #294586 / 1850 - CA BRE #01117785 / 01215943

  • Victoria Bahnasy

    Sr. Loan Consultant - Townsend Office S.F.
    NMLS #248727 / 1850 - CA BRE #00549512 / 01215943

  • Kara Fiore

    Loan Consultant - Townsend Office S.F.
    NMLS #241552 / 1850 - CA BRE #00977921 / 01215943

  • Vince Breen

    Vice President - Townsend Office S.F.
    NMLS #238661 / 1850 - CA BRE #00923758 / 01215943

  • Marilee Breslin

    Sr. Loan Consultant - Townsend Office S.F.
    NMLS #238468 / 1850 - CA BRE #00688844 / 01215943

  • Richard Chalifour

    Residential & Commercial Loan Consultant - Townsend Office
    NMLS #349170 / 1850 - CA BRE #00915461 / 01215943

  • Ron Fiore

    Vice President - Townsend Office S.F.
    NMLS #57752 / 1850 - CA BRE #01142223 / 01215943

  • John Joyce

    Mortgage Loan Consultant - Townsend Office S.F.
    NMLS #237603 / 1850 - CA BRE #01723092 / 01215943

  • Scarlet Kim

    Mortgage Specialist - Townsend Office S.F.
    NMLS #240991 / 1850 - CA BRE #01267469 / 01215943

  • Julie Malta

    Loan Consultant - San Mateo, Burlingame (NMLS #254124)

  • Rich Polonsky

    Mortgage Loan Consultant - Townsend Office S.F.
    NMLS #237277 / 1850 - CA BRE #00496899 / 01215943

  • Terry Wilson

    Sr. Loan Consultant - Townsend Office S.F.
    NMLS #242333 / 1850 - CA BRE #00989772 / 01215943

  • Eric Fairfax

    Branch Manager / Sr. Loan Consultant - Townsend Office S.F.
    NMLS #57748 / 1850 - CA BRE #01135991 / 01215943

  • James W. Argo

    Senior Loan Officer - San Francisco - Montgomery St.
    NMLS #257031 / 1850 - CA DRE #00869591 / 01215943

  • KC Murphy

    Sr. Loan Consultant - San Francisco - Montgomery St.
    NMLS #255492 / 1850 - CA BRE #1007053 / 01215943

  • Robin Patronik

    Senior Loan Officer - San Francisco - Montgomery St.
    NMLS #241087 / 1850 - CA BRE #01347330 / 01215943

  • Sally Adam

    Loan Consultant - San Francisco - Montgomery St.
    NMLS #245703 / 1850 - CA BRE #01244582 / 01215943

  • Sheila Wood

    Manager/Loan Consultant - San Francisco - Montgomery St.
    NMLS #253742 / 1850 - CA BRE #00824166 / 01215943

  • Tim Higbee

    Sr. Mortgage Consultant - San Francisco

  • Jim Arrigoni

    Sr. Loan Consultant - Corte Madera Office
    NMLS #286481 / 1850 - CA BRE #00956125 / 01215943

  • Guy Rivera

    Sr. Loan Consultant/Branch Manager - Santa Barbara
    NMLS #57662 / 1850 - CA BRE #01220403 / 01215943

  • Alma Portillo

    Loan Advisor - Townsend Office S.F.
    NMLS #280540 / 1850 - CA BRE #01444581 / 01215943

  • Jihad "Jay" Totah

    Loan Advisor - Burlingame Office
    NMLS #298898 / 1850 - CA BRE #01170254 / 01215943

  • Alan Kirth

    Sales Manager - Burlingame Office
    NMLS #238808 / 1850 - CA BRE #00848621 / 01215943

  • Kathy Derangi

    Loan Consultant - San Francisco - Montgomery St.
    NMLS #1151839 / 1850

  • Suzanne Diliberto

    Loan Consultant - Corte Madera Office
    NMLS #286438 / 1850 - CA BRE #00991022 / 01215943

  • Risa J. Meyer

    Mortgage Specialist - San Francisco - Montgomery St.
    NMLS #332214 / 1850 - CA BRE #01126851 / 01215943

  • Eric Leithliter

    Real Estate Finance - Corte Madera Office
    NMLS #335951 / 1850 - CA BRE #01731131 / 01215943

  • Joel Marks

    Loan Advisor (NMLS: #216888/1850)

  • Sean Maley

    Loan Advisor - Corte Madera Office
    NMLS #237207 / 1850 - CA BRE #01057229 / 01215943

  • Gordon Friedman

    Loan Officer - Corte Madera Office
    NMLS #248664 / 1850 - BRE #01333625 / 01215943

  • Bart Welles

    Loan Specialist - Corte Madera Office
    NMLS #281755 / 1850 - CA BRE #01167732 / 01215943

  • Christopher Tyeskey

    Senior Loan Advisor - San Francisco - Montgomery St.
    NMLS #916573 / 1850

  • Mike Collins

    Loan Advisor
    NMLS #: 315150/1850 | CA BRE #: 00164416/01215943

  • Sherri Collins

    Loan Advisor
    NMLS #: 304940/1850 | CA BRE#: 01152449/01215943

  • Deanna Cirimele

    Loan Advisor
    NMLS #: 304939/1850 | CA BRE #: 01152450/01215943

  • Fred Morfit

    Loan Advisor
    NMLS #: 276572 / 1850

  • Mike Pitts

    Loan Officer - Santa Barbara Office / Solvang Branch
    NMLS #763776 / 1850 APMC BRE # 01215943

  • Richard Kramer

    Loan Officer - Burlingame Office
    NMLS #01197164 / 1850 CA BRE #01197164 / 01215943

  • Richard Frederick

    Loan Originator - San Francisco - Montgomery Street
    NMLS # 1647980 / 1850 - CA BRE #02025529 / 01215943

  • Veronica Mora

    Loan Consultant - San Francisco - Montgomery St.
    NMLS # 274972 / 1850 - APMC CA BRE #01215943

  • Fe David

    Loan Consultant - San Francisco - Montgomery St.
    NMLS # 482592 / 1850 - APMC CA BRE #01215943

  • Larry Gray

    Sr. Loan Officer - Corte Madera Office
    NMLS # 335290 / 1850 - APMC CA BRE #01215943

  • Sahar Milani

    Mortgage Consultant - Townsend Office S.F.
    NMLS #: 1521039/1850

  • Karen Toms Brown

    Mortgage Advisor - Townsend Office S.F.
    NMLS #287920/1850 - CA BRE #01102590/01215943

  • Robert A Goeller III

    Loan Consultant
    NMLS #119842/1850

  • Mark Wiener

    Loan Officer - San Francisco - Montgomery St.
    NMLS # 246293 / 1850 - APMC CA BRE #01215943

  • Pov Oum

    Loan Officer-San Francisco-Montgomery St.
    NMLS # 1226687 / 1850 - APMC CA BRE #01215943

  • Annie Au-Yeung

    Loan Consultant-San Francisco-Montgomery St.
    NMLS # 291529 / 1850 - APMC CA BRE #01215943

  • Audrey Boissonou

    Loan Officer-Walnut Creek Office
    NMLS # 254351 / 1850 - CA DRE #01268758 / 01215943

  • Peter Thompson

    Loan Officer-Walnut Creek Office
    NMLS # 310593 / 1850 - APMC CA DRE # 01215943

  • Erick Millan Torres

    Loan Officer - San Francisco - Montgomery St.
    NMLS #: 1846477/1850

  • Patrick Gardner

    Sales Leader and Loan Originator
    NMLS # 378888 / DRE # 01734615

  • Mary Fung

    Loan Consultant
    NMLS #858429 | CA-DRE #2000531