I am currently the Division President of San Francisco’s Primary Residential Mortgage, which I co-founded in 2008. Since graduating with honors from the University of California at Berkeley and the Haas School of Business, I’ve worked tirelessly to redefine the customer experience in the mortgage industry.
Utilizing my vast background in management, sales, and operations coupled with my ability to handle the most difficult situations, I’ve personally helped thousands of homeowners successfully fund their residential mortgage.
In addition to job, I’m enthusiastic about every aspect of the world ranging from my yearn to learn about other cultures, travel avidly, play guitar and compose music, as well as compete in USTA tennis. I’ve spent time volunteering for the UN in refugee camps internationally and am devoted father and husband. I love to be involved in the community and connect with those around me.
California License CA-DOC87656
Florida License LO120355
Nevada License 63673
Texas License
Washington License MLO-87656
Josh Davis
3/26/2026
Mike and his team are incredible. They took initiative throughout loan process and even helped us get my client to close early, which is quite unusual when purchasing a condo. They made what normally can be a stressful process when trying to close a condo sale purchase be so easy and efficient. I will definitely be working with Mike and his team again in the near future. They provide high quality service and were in constant communication with my client and I throughout the process.
Tony Alejandre
3/26/2026
Mike was exceptional in helping my buyer which had a below 600 credit score and qualify for a FHA Loan.. He delivered on time and made it a smooth experience for all involved.. Go to Mike to get it done.
Denise Cronan
3/12/2026
Once again Michael assisted my clients with the purchase of a duplex as part of a 1031 exchange. He and Andrew were nothing short of incredible putting this complicated transaction together with a relatively short close. I cannot recommend their services enough. Thank you gentlemen!
Nelson
3/10/2026
Mike and Andrew are the best! We worked with them on a new home loan as well as a refinance, they got us good rates and closed on time. Great communication through the whole process and always able to reach someone when needed. Highly recommend these guys.
DShawna
2/24/2026
The care in compassion that was shown to my client was great. I cannot wait for future enjoyment with Mike and his team.
Trina Brown
2/21/2026
Knowing that my buyers are pre approved by Primary Residential Mortgage, Mike Koran and Andrew Karcher is like seeing them standing on the podium, in the middle receiving the Gold. YES! We win. We will close on time. With all the stresses that go along with selling homes, it’s so calming to know that my buyers loan is secure.Go ahead and remove that loan contingency because our loan IS SET! I can’t say enough great things about Mike & Andrew. THEY ARE THE BEST!Trina Y Brown, Coldwell Banker, 25 years.🏠
Caroll Basile
10/13/2025
I had the pleasure of working with Mike, who is the preferred lender of some valued clients of mine. From start to finish, the transaction was smooth and efficient. Mike’s communication was outstanding—whether by text, email, or phone, he consistently responded within minutes. As we all know, the lender plays a crucial role in any real estate transaction and can often be the deciding factor in whether a deal closes. Mike’s expertise and responsiveness made all the difference. I would absolutely recommend Mike Koran. Thank you for such a wonderful and successful experience.
Brendan Cody
10/10/2025
Loved working with Mike!
Alana Zaleski
10/07/2025
We recently used Primary Mortgage Residential to obtain a loan when buying our first property. They also helped us obtain a second loan for renovation work shortly after our purchase closed. This experience was a big deal to us, a big life milestone with many daunting processes and number crunching and stress. Primary Mortgage Residential made us feel SO safe and SO supported the entire time. Michael Koran, Andrew Karcher, and Dane Moler were such a pleasure to work with. All of them were extremely professional and attentive to our needs. They understood that we needed a little more hand holding and education through this process as first time home buyers with no prior experience in this world of loans and escrow and purchasing property. They worked tirelessly to get everything finished on track for us, making the process smooth and easy. They were incredibly responsive to us by email and text at all times. They clearly laid out what documents they needed from us at all times and what we needed to do to stay on track for a quick close. They helped us crunch numbers and ease our anxiety. We went on a 2 week vacation in the middle of this process and despite the time difference they still were such diligent, hard workers getting all of our paperwork in order and providing us with updates around the clock. Michael frequently got on the phone with us and did such a good job explaining parts of the process in a very easy to understand way. Michael and Andrew made us feel like no question was dumb or silly, and they celebrated our achievements. We never went more than a few hours without a thoughtful and helpful response from them whenever we needed anything at all. Overall we had such a great experience working with them and would definitely recommend them to first time homebuyers — you can take a breath and know you are in great hands with these guys, they are trustworthy.
chanel schilling
10/07/2025
Mike and Andrew were amazing throughout our recent condo purchase. We were first time home buyers and they helped us feel at ease through both the mortgage process and a HELOC loan afterwards to do some renovations. We couldn’t be happier with their service!
Elizabeth S.
10/02/2025
Mike is the best: professional, a great communicator and very, very quick to get my loan closed!
Elizabeth Schaffer
10/02/2025
Mike is the best: professional, a great communicator and very, very quick to close!
Ercilia M P
7/25/2025
Micheal was excellen! truly made the experience flawless and effortless
Jennifer J B
7/19/2025
Mike was patient, knowledgeable, and made the process as easy as possible. He explained everything clearly and found the best options.
Donald F H
7/02/2025
their commitment to professionalism. Communication. Caring folks.