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John Buck

John Buck

Senior Loan Officer

17280 N Outer 40 Rd, Suite 101, Chesterfield, MO 63005
Own what matters
Own what matters

About Me

Do you want straight answers to these three questions: How much is it going to cost? What are the payments? How much do we qualify for? If so, then Jack is the person to give you the straight answers you’re looking for.

Jack Buck, Jr. has 29 years of experience as a loan officer. He is very excited to be with the Guild team and help his clients with every aspect of their loan process.

Jack is able to offer a variety of different programs with competitive pricing for his customers. In 2003, he closed over $46,000,000 in home mortgage loans, and has continued to offer his clients the best customer service and dedication possible.

Amy Jeep, Jack’s professional assistant, has been in the Mortgage Banking profession for 24 years as a Licensed Loan Officer and a processor.

Jack has been married for 41 years and is the father of five grown children, aged 21-34. Jack also has two grandchildren. He grew up in Ladue and presently resides in Richmond Heights.

In Jack’s words, “I treat my customers the same way I would expect to be treated! I enjoy taking the time to answer all questions and am always available, even after hours. My best advice to my clients is to get pre-approved for your mortgage!”

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We have loan options to fit every situation, from down payment assistance programs for first-time homebuyers to government-sponsored programs for military families and rural residents or jumbo loans in high-cost markets.

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5.0 out of 5.0 stars
Jul 02, 2023

My experience with Guild Mortgage was the best that I’ve ever had with any mortgage lender. Everything went smoothly, all my questions were answered clearly and fully, and their online portal was easy to navigate. Jack was readily available, easy to get ahold of, and extremely knowledgeable. I will definitely be using Guild again whenever I need to refinance!
Nov 23, 2022

We've worked with Jack through 2 previous home purchases and we were going to use him again until our personal situation changed. He has always been amazing to work with. He's VERY responsive to any questions and he is always willing to go the extra mile to help educate and provide ideas on things related to the housing market.
Sep 13, 2021

Jack did an awesome job!
May 19, 2021

Thanks for everything Jack! A true professional who educated me throughout the home-buying process. I am extremely grateful I chose Jack for my mortgage needs.
Apr 15, 2021

Jack and his team did a great job. We are very thankful for their professionalism.
Mar 14, 2021

He's the best there is!

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NMLS ID #266343
I am authorized to do business in the states of California, Illinois, Kansas, Missouri and Texas. Licensed by the Department of Financial Protection and Innovation under the California Residential Mortgage Lending Act; (;