Sean Maley

Loan Advisor - Corte Madera Office 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, traveling, and spending time at their weekend home in the Russian River. 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.

Equal Housing Lender
NMLS #237207 / 1850
CA BRE #01057229 / 01215943
Oct 10, 2021
Working with Sean was a great experience and he and his colleagues are the best. Our real estate agent referred Sean to us and we couldn't be happier. Sean found us a loan program that worked for our circumstances. and was an absolute joy to work with . From application to closing, Sean was very professional, courteous, and helpful in every respect. Do yourself a favor and give Sean a call next time your looking to finance your real estate purchase, or refinance and existing property. You won't be sorry.
Sep 21, 2021
We would not be in our home, which we bought five years ago, without Sean and his team. And we just completed a re-fi with them. Both times were incredibly smooth even for a purchase that wasn’t typical. Sean is very responsive which makes communication efficient. We also appreciated his advice to wait on a re-fi until the timing made sense. Highly recommend!
Aug 30, 2021
Technical Director
Sean helped us get our second home. He is the most amazing broker we ever met. Sean was able to help us to get the finance based on what we can without us selling our current house. He response to all our questions instantly. When we got our second house offer accepted, there was a major issue with the new house that could potentially delay our closing date. Sean worked tirelessly to help us get the house close on time and eased all our concerns and stress. Sean is incredible responsive, super professional and easy to work with, and we feel like he is always on our side. We feel so grateful to be able to work with him.
Aug 16, 2021
We worked with Sean and his team to finance a seasonal home, and I think they are the only reason we successfully closed on time! Sean is an experienced pro who asked all the right questions, worked extremely quickly at each step of the process, and helped get us over the finish line when we hit some last minute snags before closing. Thank you Sean for your excellent service!
Aug 13, 2021
Consultant
I recently closed on a home and Sean worked tirelessly - from the start - to make it happen (after another loan advisor wasn't able to). He was able to secure an incredible rate and he felt like like an advocate for us throughout the process. He is very detail oriented, thorough, and remained accessible for all questions. I would strongly recommend Sean!
Aug 9, 2021
Psychologist
My husband and I just bought our first home. Working with Sean and Guarantee Mortgage was a dream! Sean is friendly, professional, transparent, and an excellent communicator. He answered any questions we had promptly and thoroughly. Sean really helped us navigate the home loan process. I highly recommend working with Sean to anyone who is considering a home loan!
Jul 16, 2021
Realtor
Having known Sean and referred him over the years, It was nice to actually use him personally.
Actually, Sean called me and said" Boy have I got a program for you!"
He worked his magic, and the whole process was painless.
Loved working with Sean and David!
Jul 7, 2021
We have worked with Sean for the last twelve years various mortgages and on our recent refinance. He's super responsive; and helps make the process as smooth as possible. I would HIGHLY RECOMMEND Sean to anyone seeking a mortgage!
Jul 3, 2021
Sean was extremely responsive and help me get an amazing rate.
Jun 24, 2021
We worked with Sean on our recent refinance. He was super helpful. He knows the industry and is very responsive. I would HIGHLY RECOMMEND Sean to anyone seeking a mortgage!
Jun 14, 2021
Sean was such a pleasure to work with. He is incredibly smart and creative, and helped us through the process of us getting our first home together. We felt very taken care of by Sean. His communication skills and attention to detail are second to none. I would HIGHLY recommend working with Sean.
Jun 14, 2021
Sean helped us make a dream come true. Not only is he thorough and timely, but he's also extremely kind and helpful. His knowledge and attention helped us get into a home that we didn't think was possible. Moving into a new house is such an emotional decision and Sean really helped us every step along the way. I would recommend him to friends and family as I trust him beyond words.
Jun 10, 2021
Sean was such a pleasure to work with. He is incredibly smart and creative, and helped us through the process of us getting our first home together. We felt very taken care of by Sean. His communication skills and attention to detail are second to none. I would HIGHLY recommend working with Sean.
Jun 9, 2021
Working with Sean was such a pleasure. Not only is he extremely smart and personable , he makes you feel safe. He took what could've been a very stressful situation and made us feel taken care of. Not only is he thorough, but he is also extremely timely and communicative. I would very much recommend working with Sean. We are able to be in the home of our dreams because of Sean. His creative thinking and his attention to detail really opened up our lives.
May 26, 2021
This is our second loan with Sean and we really liked working with him again. He and his team are very responsive. They kept the process moving along with regular emails and texts. And Sean made us comfortable with the refinance process by laying out all the steps and explaining the lack or risks in the process. Thanks Sean and team!
May 6, 2021
Sean was very responsive and together with his team provided excellent service in bringing our refinance to a close. Sean will be my first choice if I ever refinance again. Thanks Sean!
Apr 7, 2021
We've done literally dozens of mortgages in our life - this refi was the easiest, most efficient and professional experience we've had out of them all! Thanks to Sean and his team for excellent, timely and clear communications throughout the process. We highly recommend him!
Apr 6, 2021
Working with Sean, and David was great. They’re super professional. The whole process of refinancing our home was seamless. I highly recommend them.
Mar 6, 2021
Sean was on top of his game- he prequalified us very fast which allowed us to shop for a house with confidence. Once we found and offered on the house we ended up purchasing, he was very diligent in getting all the paperwork straightened up. He was in constant communication with us, answering texts immediately or picking up the phone to answer questions. We’re grateful to he and his assistant to get us to our dream house!
Feb 22, 2021
Sean was great. Very quick responses and was able to secure us a great rate mortgage and he helped make our home buying process less stressful. Definitely recommend working with Sean to secure a mortgage.
Feb 19, 2021
Director of Sales
Sean was great. Very quick responses and was able to secure us a great rate mortgage and he helped make our home buying process less stressful.

Definitely recommend working with Sean to secure a mortgage.
Feb 18, 2021
Sean was super helpful with our refinance. Sean, David and Team are super responsive and easy to work with.
Feb 11, 2021
Sean helped us through 2 purchases and a Refi, couldn’t have done it without him. He and his team kept everything on track and moving forward every step of the way.
Feb 11, 2021
VP Business Development
Sean is the best! I highly recommend him to anyone for mortgage services.
Feb 4, 2021
Thank you Sean for making everything so step by step easy. I never felt overwhelmed or confused. And I can’t believe how quick and easy everything went. Sean was always quick but never rushing us or applying pressure. We were in very good well informed hands through this process. Between initial offer on the house and our move in with keys in hand was one month! Amazing

Partner Network