John was very helpful from start to finish during our home search process. Due to us being first time home buyers some situations that may have felt difficult or damn near impossible John reassured us! He was on top of everything, responded fast to any questions we had and ultimately helped us get the perfect home! Thankyou John we are very grateful! ~ Tony & Jalisa

Location & hours
John DesMarteau at Guaranteed Rate Affinity (NMLS #283957)
Today · 9 AM – 5 PM
Office hours
- Monday
- 9 AM – 5 PM
- Tuesday
- 9 AM – 5 PM
- Wednesday
- 9 AM – 5 PM
- Thursday
- 9 AM – 5 PM
- Friday
- 9 AM – 5 PM
- Saturday
- Closed
- Sunday
- Closed
Reviews
Write a reviewExceptional rating
Based on 24 star reviews
Loved by clients
Based on 24 reviews
Ratings include all 24 reviews. Reviews collected directly from clients are shown only with their permission.
John was very helpful
Professional. Available for questions. Very helpful
They beat my bank's rate and costs. Loan officer and processor very responsive.
No written review
They made the process quick and easy!
They were persistent and so much help in getting me in a new house
Great service, all questions handled timely, even late into the evening.
They were very helpful to us to get the loan fast.
Really good service from start to finish.
John was amazing to work with. Not only did he understand the urgency in our two week closing deadline, but he also made the process extremely seamless and very pain free
My lender John ,Fernanda ,Adrienne, his whole team worked very hard and got this done for me they all need a raise. Just incredible !
I delt with another lender and didn't feel comfortable with them; getting answers to questions were like pulling teeth and thing kept changing on the loan. I gave Guaranteed Rate Affinity a try and they did everything I wished the other lender did. I will recommend anyone to Guaranteed Rate Affinity for home loan needs.
The Procedure and People
John was amazing to work with! Will definitely be back for future purchases!
My realtor recommended John DesMartau
Fast work, dependable and efficient.
John Desmarteau was great to work with explained everything to me and helped me understand everything.
Great help with everything
Very happy with my loan officer john and your guys whole team
I had very great experience with john my loan officer and your guys whole team!

John and his team are fantastic to work with he took the time to explain everything to me so that I understood everything every step of the way definitely recommend him
