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Jill Diethelm

VP of Mortgage Lending
219 W. Hillgrove Ave.
La Grange, IL 60525
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NMLS: 192590
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TestimonialsCustomer testimonials Read more

Thank you for all your help Jill! This is a smooth process because you guys have an excellent organization system. We are super impressed.

John S - Oak Park, IL

We had a wonderful experience working with Jill. She was available to answer all questions we had, big or small. Jill went above and beyond for us during this process. We are grateful to have worked with such a caring and helpful individual during our first home purchase.

Jill Diethelm is outstanding! She is efficient, knowledgeable, prompt and friendly. And Jill was ALWAYS available to answer questions or confirm that documents had been received. It was a pleasure to work with her.

Please see Zillow for my 5-star review of Jill Diethelm. Her and her team made the entire process easier than expected

K. Gremley - Niles, IL

Jill Diethelm is excellent. She is efficient, knowledgeable, responsive, and trustworthy, which made me feel good and comfortable with choosing Guaranteed Rate Affinity for refinancing.

A. Ford - Broadview, IL

Jill Diethelm and Guarantee Rate Affinity made our home loan very simple and trouble free as well as fast.

Edward Z. - Riverside, IL

Jill Diethelm and her team were EXCELLENT to work with. Pam Nord was very responsive to our needs throughout the loan approval process and Cindy Kiekow was very detail oriented and kept us on track as our loan coordinator. I would recommend this team to anyone looking for a home loan!

Allison S - Downers Grove, IL

Our loan officer, Jill Diethelm, was superb! Guided us through an otherwise daunting/complicated process with patience, expertise and sensitivity throughout! She and the whole team at GRA were excellent AND effective - HUGE thanks, all!

Paul S - Evanston, IL

Jill and her team are just top notch. She provides clear explanations, instructions and precise information. All of this with a smile and comfortable personality. She is also efficient and responds quickly to questions and/or concerns. It was a pleasure applying for a mortgage with Jill. I know it sounds crazy, but it was painless!!! Thank you Guaranteed Rate Affinity for hiring such a bright star!

Rita G - La Grange, IL

I will always remember our home buying process for all the RIGHT reasons: from the start, Jill was a pleasure to work with, she is so friendly, so easy to talk to, and when she said she will always be available to answer our questions she meant it! Whether it was through email or a call, she always got back to us, she always explained everything in detail, she never rushed us off the phone or gave us short answers, she never made us feel like she was too busy for us. Yes, she has a lot of...

Francisco M. - Cicero, IL

Jill and her team were extremely helpful and knowledgeable. They helped me every step of the way which was very reassuring as a first time buyer.

Anthony S. - Berwyn, IL

Jill Diethelm was absolutely amazing to work with throughout the entire loan process. She was prompt and extremely detailed when providing us with information that we needed. This was only our 2nd time getting a loan for the purchase of a home but after working with Jill and her team, I wouldn't go anywhere else when looking to get a loan in the future. Thank you Jill & Guranteed Rate Affinity for making this process this home buying process easy and stress free!

Matthew M. - Crystal Lake, IL

All team was very professional. Answering every questions I have. Explained all items, even the smallest. Thank you All for the great work you did for us.

Krzysztof T. - Palos Park, IL

Jill was amazing to work with. My wife and I relocated from Washington State to Illinois, and she helped make this process less stressful by keeping us updated throughout the process. Thanks Jill!

Thomas S - Berwyn, IL

Jill Diethelm was wonderful. She explained every step of the process to us. She and her team handled it all in a very professional way.

Kathryn S - Darien, IL

Jill was very thorough and detailed in her explanations and requests. She was always pleasant and made our experience easy and enjoyable.

Tisa G - Brookfield, IL

About Jill

Since beginning her mortgage lending career in 1992, Jill has worked hard to get clients from pre-qualification to closing as smoothly and stress-free as possible. With a background in both processing and origination, she is well-versed in every step of the loan process. Jill promises to be by her clients’ side from start to finish, and is proud of her perfect attendance at every closing. With her diverse knowledge of the business, a friendly yet professional approach and constant availability, she inspires confidence and trust in everyone she works with. Whether it’s a first home or fifth, whether it’s a refinance or renovation, Jill prides herself on helping people of all backgrounds and needs achieve their dreams.

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