GuaranteedRate - Mortgage Company
Apply Now My Account

Christina Longo Trethewey

Senior Loan Officer
420 Boylston Street, Suite 606, Boston, MA 02116
Contact Christina
NMLS: 79510
Ready to start your Digital Mortgage?
Apply now

TestimonialsCustomer testimonials Read more

Had a great experience with the entire team I worked with at GR. Everyone was incredibly responsive and organized. Made the exchange of important documents and lots of information feel pretty seamless.

Emma V.

Everyone was very responsive and helpful throughout the whole process. I never felt rushed or that I was asking a dumb question.

Nicholas M. - April 2018

Everyone was very responsive and helpful throughout the whole process. I never felt rushed or that I was asking a dumb question.

Nicholas M. - April 2018

I have worked with Guaranteed Rate several times in the past, and I would very much want to work with them again in the future. I trust the entire team, most especially the Loan Officer, who I have worked with in the past, even before she worked at Guaranteed Rate. She was the sole reason I applied for a loan with Guaranteed Rate, and I have come to trust and appreciate her entire team. I would, and I have, several times in fact, recommended my friends and relatives use Guaranteed Rate - and...

Carolyn A.

Christina Longo Trethewey and her team of Jeanne Singleton, Mark McLaughlin and Carissa Pape were all exceptional, easy to work with and talk to. They were extremely responsive and worked weekends, nights to get the information the lender was looking for to get this mortgage accomplished. I truly appreciate their efforts, professionalism and dedication. Thank you all!!

Cathy O.

Christina was amazing as was the rest of the team. We had a great experience and found the process to be seamless.

HIllary L.

Christina was absolutely great to deal with especially in my expedited re-finance situation. She was timely, thorough, and all around pleasure to work with.

Andrea D.

Christina and her team were amazing. They made the process so seamless.

Lynn M.

Christina and her team were clear and organized with everything they needed and the process involved in getting our loan. We have worked with them before and we would recommend them to anyone who was looking! Thank you again!

Carlos-Luis B.

Christina and her team are awesome. They all deserve immediate raises and all expense paid trips to anywhere in the world that they would like to go! (Also anyone aggregating these surveys should be included on the these) Your attention to this matter would be appreciated. Thanks! Happy Year-end. Enjoy the Holidays!

William H.

Christina, Mark, Jeanne, and Monique were all awesome to deal with. Everyone was extremely responsive and professional. Their performance and attentiveness exceeded my expectations.

Brian V.

Christina Longo Trethewey was amazing. She was professional and her team hands down was truly professional and the teamwork that happened allowed for such a smooth and efficient closing. I can't say enough great things about Christina and would recommend her and her team to anyone. This team is truly hands down one the best.

Michele M.

Christina and her team were very helpful and made our home busy process very easy. I would recommend them to anyone buying and home and especially first time home buyers!

Michael N.

Hello Christina, What a nice surprise we received in the mailbox earlier this week. A box of personalized cookies from your office, including one with a picture of our newly moved-in house. It is so thoughtful. We truly appreciate it. I don't think you would mind, but is it okay if I share the picture on my facebook feed? Even without the cookies, we have been blown away with the level of organization and smoothness of the processes and steps involved by your office and Guaranteed Rate in our...

Jimmy and Kristy H.

This experience was painless and efficient. Everybody I had to deal with was very professional and answered all of my questions. I have already recommended Guaranteed Rate to my sister and some friends. Thank you so much.

Robert G.

Christina Tretheway and her team were great. Knowledgeable, responsive and always accessible

Margaret T.

I was so impressed with Guaranteed Rate, Christina Trethewey and her team. They were so easy and helpful to deal with. They were pleasant and made sure I knew what was going on every step of the process. They had everything done on a timely manner, I didn't have to worry about anything. If I need to get another loan for anything I will contact them in a second.

Kate S.

THANK YOU so much for the wonderful cookies and the good wishes. What a lovely gesture - and the special cookie layered with the home photo was uniquely thoughtful. We enjoyed eating most of them very quickly. It was indeed a real pleasure working with you and team - we felt we were in great hands the entire time, and very appreciative of the teamwork that made the process so smooth. We're enjoying our new home, and slowly getting to meet our kind neighbors. Have a wonderful summer, and Thank...

Bhaskar & Taruna B.

Christina and her team were a dream to work with. Made the whole process super easy and painless.

Daniel V.

Jon and I want to thank you for your commitment to our cause of purchasing our first home. You have gone above and beyond despite all the road blocks we faced but we are so thankful to have been referred to you. Your professionalism, willingness to communicate often and overall demeanor is a testament as to why you are the best in the biz! It was a pleasure working with you and hopefully we can work with you again in the future. Thanks again!

Whitney and Jon T.

Christina and her team were great - responsive, smart, and helpful! Thanks again!

Kathryn G.

Christina was awesome! She was so patient, understanding, and easy to work with. I would highly recommend her.

Katie B.

Christina and Mark were instrumental in making this a seamless experience. It was very clear what was needed, when it was needed and both were very courteous and responsive when I had questions. The whole team was great, but Christina and Mark stood out to me.

Megan H.

The process was so intimidating but once Christina started helping me out it was a breeze

Thomas D.

We had a very difficult closing process due to legal issues on the sellers end. Guaranteed rate made everything as seamless for us as possible. We went through multiple loan extensions and renewals and they were always willing to take the time to answer any questions I had. My sister recommended Guaranteed Rate to me, and I would highly recommend them to others in the future.

Malinda W.

The process could not have been easier or faster, thanks!

Forrest V.

Our lender couldn't have been better. They were always available to answer any questions I had and I really felt like they had our best interest in mind.

Malinda W.

I have refinanced twice with Guaranteed Rate and now have my new mortgage for my new home. The team is outstanding in their communication and organization. They also did a fantastic job of talking to my lawyer, real estate agents, financial planner, etc. and while I was informed, I didn't have to act as a go between for all parties which was a MASSIVE relief.

Jocelyn F.

Christina Longo and her team are a pleasure to work with!

Zachary K.

I went to Guaranteed Rate because a friend had recommended Christina Trethewey - she had worked with Christina in the past and had a great experience. I found the process pretty easy - having a secure website to upload the documents was very convenient.

Cynthia M.

Christina was a pleasure to work with. As first-time homebuyers, the whole process of applying for a mortgage was very daunting at first, but Christina put us at ease right from the start. She made the whole process simple and stress-free -- from getting pre-approved, to understanding our mortgage options and answering our questions, to getting our final loan approved. I would happily recommend Christina to anyone looking for a loan officer.

James V.

Great company!

Boris D.

The process was simple, uncomplicated and transparent.

Randall W.

Christina and her awesome team made our refinance a breeze. From start to closing, all aspects of the process were handled professionally and efficiently. I would not hesitate to work with them again and would highly recommend them to everyone!

John N.

Christina and her associates were all very professional and helpful. I appreciate how patient they were explaining the process to me.

James M.

Christina and her entire team were awesome. This was a first-time home purchase for us, and they were very helpful every step of the way. They were also prompt in responding to all of our questions, no matter how small or silly. We were very happy. Thanks again!

Alyssa M.

Great team from start to finish. Every member was able to explain and answer every question I had!

Michael W.

Christina Tretheway was an amazing advocate and customer service expert. She followed up every question, email, and phone calls/texts immediately without fail and accommodated us in every way throughout the process. I have never had a more positive experience purchasing real estate.

Mark R.

I have watched other people really struggled with their home finance this was so simple. I started to wonder if I was doing something wrong! However everybody made it so easy and they were so organized and the process was so available digitally that it made the experience really good.

Jocelyn F.

I love that everything was handled online or over the phone! The process was very easy for a working professional.

Brooke S.

Christine and her team were amazing. They were always available and answered all of our questions and concerns quickly and effectively. We would absolutely recommend her and her team in the future without hesitation! Thank you!

Carlos-Luis B.

We worked with a team that was a well-oiled machine, easy to communicate with, incredibly informative through our first ever mortgage process, incredibly accommodating and really nice people, to boot! Many thanks for making a lifelong dream a reality!

Lindsay C.

Christina Longo Trethewey exceeded our expectations. Always available to answer questions. As first time home buyers- she is exactly what we needed.

Katelyn A.

Christina is great! It can be a little confusing to know who to reach out to with questions because so many people are involved, but Christina always came through, patiently explaining my many questions. She is approachable and flexible and easy to reach. My only criticism for GR is that the generated emails are a bit confusing if you are a first timer... I got 3-4 emails saying my loan was approved at different points and this can be misleading, when in reality you can still lose your loan up...

Rose R.

Christina and her team are the best! She has done a great job for my clients and it was nice to get to see first-hand how unbelievable her service is. Such a quick and easy process. Thanks, again, Christina!

Michael M.

Christina was a dream to work with. She made a very stressful process simple and easy to understand. She was communicative the whole way through and I always knew what to expect. She was such a professional and I'd recommend her to anyone buying or refinancing a home.

Krista M.

Christina Longo Trethewey and her staff were amazing. Their communication was great and worked with me through different options. In addition, the loan officer worked seamlessly with the attorney and agent, which made the process extremely smooth.

Scott S.

The loan officer, Christina Threthewey was very knowledgeable and helped us make the best decisions for our refinance. I would recommend Christina to anyone I know looking for a home loan or refinance!

Stephen D.

Christina and her team were fantastic. They were responsive, kind, helpful, and easy to work with. The dropbox system made sharing documents extremely easy. I highly recommend Christina and Guaranteed Rate.

Kenneth A.

Christina Longo Trethewey and Jeanne Singleton are both fantastic to work with. They were professional throughout our experience. We asked a lot of questions and both were available to answer our questions quickly and to our total satisfaction. Thank you.

Richard S.

Christina and her team did an excellent job throughout the mortgage process and were able to troubleshoot any issues that arose. I'd really like to thank Jeanne on her team for taking the time to answer any questions and the numerous emails I sent.

Timothy B.

Christina was amazing!

Maleah P.

My team that I worked with, Christina, Jeannie, Sena and Shaw Kennedy were wonderful. Very responsive and answered ALL my many many questions. A+ team!

Veronica O.

About Christina

Christina Longo Trethewey is recognized as one of the top mortgage professionals in the mortgage industry. She began her career in financing over ten years ago, and is now one of the most knowledgeable and reliable sources for mortgage financing across Massachusetts, New Hampshire, Connecticut, and Rhode Island. Christina is an experienced lender specializing in all residential financing. Christina is a homeowner who enjoys helping others fulfill their own dreams of homeownership. She does what she says and firmly believes in following through with clients to help them with their financing goals.

During her free time, Christina loves to involve herself in the Charlestown community as a Charlestown Big Sister, coach for Charlestown Youth Soccer and participant in many community charities.

Christina has been named one of the Top 200 Loan Officer's in the country in Scotsman Guide for the years 2014 and 2015. Christina was also named one of the top 1% Mortgage Originators in Mortgage Executive Magazine for the last 5 years running.


Error: Notice: No Q&A data for this VP.

See how easy the Digital Mortgage works

Today’s rates

Loan Type Rate APR

*Rates may vary by state.

Check rates and get approved online right now in just minutes! Or give me a call and I’ll answer your questions and guide you through the process!

Intuitive Loan Finder

Our Intuitive Loan Finder lets you sort by lowest monthly payment, lowest interest rate or the right loan term.

Explore loan options