We have helped Bay Area families finance their home, with over $2 billion in loans annually, and we can help you.
Offering a wide range of 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
About
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Sean Maley
Loan Advisor - Corte Madera OfficeNMLS #237207 / 1850 - CA BRE #01057229 / 01215943
Tim Higbee
Sr. Mortgage Consultant - San Francisco
Suzanne Diliberto
Loan Consultant - Corte Madera OfficeNMLS #286438 / 1850 - CA BRE #00991022 / 01215943
Fred Morfit
Loan AdvisorNMLS #: 276572 / 1850
Brian Cassanego
Mortgage ConsultantNMLS #2002976
Jim Arrigoni
Sr. Loan Consultant - Corte Madera OfficeNMLS #286481 / 1850 - CA BRE #00956125 / 01215943
RC
RJ & CJ
recommend
Sean Maley
Oct 27, 2025
We are older customers of Sean and have had a number of great experiences with Sean over the year. Our latest transaction was a real challenge - a new construction condo purchase. The whole process took nine months and Sean and his team helped us to navigate the different problems in the various phases of the process of buying from a builder. Sean was always available (even when he was on a trip to Victoria Canada). Thanks Sean and team!
AN
Amar Nijagal
recommends
Sean Maley
Sep 25, 2025
Sean was AMAZING. So responsive and helpful. I really apprecaite how he guided us through this process.
HS
Howard Shure
recommends
Sean Maley
Sep 18, 2025
My wife and I hadn’t bought a home in over 20 years, so this honestly felt like our first time all over again. Sean made the whole loan process surprisingly simple. He kept in touch constantly, explained things in plain English (which we really needed), and always checked in to be sure we were on track. What I expected to be stressful turned into a smooth experience, and I’m genuinely grateful for how easy he made it.
R
RW
recommends
Sean Maley
Jul 12, 2025
Sean closed a loan in 21 days start to completion for a somewhat difficult second home property. He had great resources at his fingertips, was communicative and an overall consummate professional. He appeared to work at any hour of the day or night something needed to be done. As one in a service industry, this was incredible. I suppose the best thing I can say is that I was so happy with what he did with this mortgage, I have him working on refinancing on another property.
A
Anonymous
recommends
Sean Maley
Jun 26, 2025
I recently closed escrow on my new home and Sean was able to navigate through a number of escrow glitches and get it done on time. Thank you, Dave
CS
Carol Sams
recommends
Sean Maley
Jun 26, 2025
Sean was so efficient and super communicative. He brought us a competitive loan.
JP
Jeremy P.
recommends
Tim Higbee
May 19, 2025
Thanks! Great job on getting us a loan.
KD
Kelly D.
recommends
Sean Maley
May 19, 2025
Sean was wonderful! He was extremely thorough and competent, resulting on my loan closing in just 2.5 weeks! I couldn’t be happier with the service Sean provided. KD
CB
Chelsea B.
recommends
Sean Maley
Apr 25, 2025
Sean got us financed for our first home after everybody else told us it couldn't be done. He guided us through the process and all the twists and turns, and helped us confidently navigate a really challenging market. Can't recommend him highly enough.
LK
Lisa K.
recommends
Sean Maley
Apr 16, 2025
Really advocated for us to get what we needed, engaged and available pretty much 24/7 and pointed us to other resources like home insurance etc. Took good care of us.
Sean was friendly, efficient, skilled, concise and met every deadline while ensuring all involved in the process did as well. He also has a fun sense of humor which helped navigate my 1st home purchase/loan. He and his partner David work seemlessly! Highly recommend them!
JM
Jodee M.
recommends
Tim Higbee
Apr 1, 2025
Tim is amazing. We have now worked with him and his team twice and we'd definitely recommend his and his team
SR
Sean Maley is an amazingly talented Loan Advisor. He is incredibly patient and works tirelessly to find the best loan for your particular situation. I’m not sure if he sleeps because her seems to be available 24/7 to answer your questions and provide updates and advice.
Obtaining the right loan can be time consuming and emotionally charged event. Sean is there to simplify the process and provide support.
He’s simply the best.
Obtaining the right loan can be time consuming and emotionally charged event. Sean is there to simplify the process and provide support.
He’s simply the best.
MO
Michael O'Brien
recommends
Sean Maley
Feb 20, 2025
From the moment of our first encounter to the close of escrow, Sean was the consummate professional and client advocate. He worked with unflagging diligence and skill to ensure accessibility and success. In today's inundated, convoluted market, you need look no further than Sean Maley at Guarantee Mortgage.
RE
Russell E.
recommends
Sean Maley
Dec 30, 2024
We had an excellent loan process with Sean. It was our first 1031 exchange, and the paperwork was getting overwhelming, but Sean was able to keep us relaxed and focused on all of the 1031 processes, and our loan finalized, and we are very pleased, and would recommend Sean to anyone who is looking for a positive loan experience.
JO
Joel O.
recommends
Sean Maley
Nov 21, 2024
It was our first time buying a home and had no idea of the process. Sean was amazing! He guided us through the process making it easy. He took the time and effort to help us and was like a bulldog getting shit done for us! I highly recommend this guy. Would definitely recommend him to my closest friends
RO
Rita O.
recommends
Sean Maley
Nov 21, 2024
We had an excellent experience working with Sean! He was always incredibly helpful, quick to take action, and consistently went above and beyond to ensure everything went smoothly. His positive attitude really helped us during the whole process. We truly appreciated his prompt communication and we highly recommend him!
SL
Sandra L.
recommends
Tim Higbee
Nov 15, 2024
Tim was very helpful to us in getting a loan to purchase a condo in Hawaii. He and his colleague did their best to make our dream come true, we couldn’t have been more thankful and happy with his excellent skills.
KN
Kelly Nerviani
recommends
Jim Arrigoni
Nov 9, 2024
Very professional got us the money needed at a good rate. He was also very patient as we gathered all the necessary paperwork.
MH
Matt H
recommends
Sean Maley
Oct 30, 2024
I highly recommend Sean to help with all of your loan and refinance needs. He knows the rate market superbly well and is an excellent strategist to get the lowest possible interest rate. Importantly, Sean stayed in contact throughout the process and was readily available to answer questions.
CC
Carolyn Carnell
recommends
Sean Maley
Oct 30, 2024
Sean is an amazing person to work with. He is prompt, efficient and goes the extra mile to get things done! I absolutely loved working with him and highly recommend him for your loan serving needs. Thank you Sean for for helping us make our dreams come true!
AK
Alex Kritz
recommends
Sean Maley
Oct 16, 2024
I would highly recommend Sean. He was responsive, kind and supportive in guiding me through the maze of getting a loan at a good rate.
MJ
Maria J.
recommends
Sean Maley
Oct 8, 2024
Sean started working with us in 2022 to obtain a loan to buy out our co-owner of our San Francisco home. He obtained us a jumbo loan with great interest (given the market ) and we bought out the co-owners interest and sold the property. We used him again during our search and final purchase of a new home. The process of finding a new home was grueling given not only the interest rate but the insurance situation as well. I could not have asked for a better agent than Sean. He kept our pre approval alive through several unsuccessful attempts to buy home and he was so responsive to our inquiries that I thought he must never sleep! He dealt with all the bumps with calm competence and always came up with a workable solution. He is incredible!
JL
Jim Longacre
recommends
Sean Maley
Sep 26, 2024
Sean and team handled all the details guiding me through the refinance jungle.
MT
Matt T.
recommends
Sean Maley
Jun 27, 2024
Sean was fantastic. He worked hard to get us the best rates possible, and was always very confident moving forward. We appreciate that he's continuing to look after us!
