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Sean Maley

184 Recommendations
About Me
Loan Advisor Guarantee Mortgage NMLS #237207 / 1850 - CA BRE #01057229 / 01215943

Since 1991, Sean Maley has excelled at placing clients in the home of their dreams by keeping their best interests at the forefront of every transaction. As a result, Sean has achieved a 96.7% Premier Service Rating—the industry’s leading customer-satisfaction standard.

With the support of his top-notch assistant and husband, David Hasslinger, Sean has built a reputation for swift response, seamless service, and timely escrow closings, while maintaining the highest level of integrity and honesty with his clients. A consistently top-producing mortgage professional serving California homeowners, Sean is the “instruction manual” clients need to help navigate the complex real estate buying process.

Outside of work, Sean and David enjoy hiking, gardening, home remodeling and traveling. Their charity work includes raising thousands of dollars for the Aids Life Cycle, Peta and Home for a Home.

Sean was raised in Marin County where he attended St. Isabella’s, Marin Catholic High School and later, the University of San Diego.

Fun trivia fact: Check out IMDB and see what Sean was up to as a kid.

Equal Housing Lender
NMLS #237207 / 1850
CA BRE #01057229 / 01215943

Bill Kitchen
Realtor Zephyr
IK
Aug 7, 2026
As first-time homebuyers, we couldn't have asked for a better lender. Sean guided us through every step, answered all of our questions, and made the process stress-free. Professional, trustworthy, and highly recommended!
PM
Jun 17, 2026
Sean and his team helped us with a bridge loan. We fell in love with a home and had to move quickly but hadn’t begun preparing our existing home for sale. Sean was great. He walked us through the process and explained exactly what we should expect. He listened to our needs and created a customized plan that checked the boxes we knew of and more importantly those that we were unaware of. He advocated on our behalf with the lender to cover additional costs and made sure every detail was covered. It was to be an easy deal but a couple issues regarding title complicated things. Sean was amazing at working with all parties to clear things up and keep the process moving forward. He even made sure that all issues were corrected to avoid any future concerns. He always delivered results on time. His communication was superb and most importantly we always knew he had our back. Buying and financing a home is something that people don’t do every day. Sean’s experience and professionalism made it easy. I highly recommend Sean and his team.
BA
Jun 9, 2026
I cannot recommend Sean Maley and team enough! Sean was super attentive and quick to respond on every single thing. We even closed super early because we got everything done so fast! We have done this a few times now and have never experienced such a smooth transaction. Highly recommend!!
ML
Feb 25, 2026
I can’t say enough great things about working with Sean Maley. From start to finish, he was prompt, professional, and incredibly responsive. Anytime we had a question or needed clarification, Sean responded quickly and made sure we fully understood every step of the process.

What really stood out was how hard he worked for us. He stayed on top of every detail, kept us informed throughout, and communicated clearly and consistently. We always felt like a priority, and that level of dedication made the entire experience smooth and stress-free.

If you’re looking for a loan lender who is knowledgeable, dependable, and truly committed to his clients, I couldn’t recommend anyone better than Sean. He was absolutely awesome to work with, and we’re so grateful for everything he did for us.
EG
Feb 15, 2026
I highly recommend Sean Maley as a mortgage specialist.

We have worked together extensively on numerous transactions for my real estate clients over the years, and I have always appreciated his professionalism, responsiveness (he truly stays on top of everything to keep the process moving!), and depth of knowledge.

This was my first time working with him on a personal transaction, and the experience was just as seamless. From start to finish, everything went incredibly smoothly. Sean was proactive, communicative, and ensured we understood each step of the process.

If you’re looking for someone who is knowledgeable, reliable, and genuinely invested in achieving the best outcome for his clients, I would not hesitate to recommend Sean and his team.
TG
Jan 28, 2026
Sean helped us purchase our first home over two years ago and recently assisted us with refinancing. He is extremely knowledgeable, responsive, and on top of every detail. He answered all our questions quickly and made the entire process easy. We couldn’t recommend Sean more.
EB
Dec 7, 2025
We've worked with Sean twice now (mortgage then refi) and Sean is always on top of the process. Very supportive.
SF
Dec 1, 2025
Sean was super professional, efficient, communicative (and funny). He never made us feel dumb with all of our dumb questions! We are happy with the loan and his performance. I would definitely recommend him.
RC
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
Sep 25, 2025
Sean was AMAZING. So responsive and helpful. I really apprecaite how he guided us through this process.
HS
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
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
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
Jun 26, 2025
Sean was so efficient and super communicative. He brought us a competitive loan.
KD
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
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
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.
Project Manager Apr 11, 2025
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!
SR
Attorney-Mediator Mar 14, 2025
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.
MO
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
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
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
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!
MH
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
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!