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Jill Diethelm

Jill Diethelm, NMLS #192590

Senior Mortgage Loan Professional
Wintrust Mortgage
Direct: 630-532-6857
Mobile: 708-743-5626

Since beginning her mortgage lending career in 1992, Jill Diethelm has helped her clients get from prequalification to closing as smoothly 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 she is proud of her perfect attendance at every closing. Jill’s diverse knowledge of the business, friendly yet professional approach, and constant availability allows her to inspire confidence and trust in everyone she works with. Whether it's a first home or fifth, a refinance or renovation, Jill is committed to helping people of all backgrounds achieve their dreams.


When you work with Jill, you’ll get:

  • Friendly and comprehensive service 
  • Day-and-night availability
  • Constant loan status updates, every step of the way
  • The confidence of having a trusted, respected lender by your side
  • The knowledge and expertise to help you choose the best loan for your needs



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