William Koumparis, Loan Officer, NMLS # 19510...
Senior Loan Officer | NMLS # 1951011
As a licensed Loan Originator who is familiar with a variety of loan types and specialized programs, I am ready, willing and able to help you find the mortgage product that is right for you.
Whether you are looking to purchase a personal r... Show More
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Reviews from Web
William was very responsive and attentive throughout the entire process. He answered all my questions and made my overall experince very pleasant.
Reply from William Koumparis
February 4th, 2026 02:53 PM
Maisha, I appreciate your kind words. It was my pleasure to assist you and ensure all your questions were answered during the process. I'm glad to hear you had a pleasant experience, and if you ever need help in the future, please don't hesitate...
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Jared is always a great help. He keeps us up to date on what the market is doing. Thanks.
Reply from Owner
September 29th, 2024 12:00 AM
We're delighted to know you had a satisfactory experience with Jarad. Being up-to-date with the market and offering great insights is one of our top priorities. We appreciate your feedback, Luis! Thank you.Thanks for being, well you... and...
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Amazing work did not stop until we got a clear to close.
Reply from William Koumparis
January 13th, 2026 04:13 PM
Ashley, I'm pleased to hear that everything went smoothly and we were able to achieve a clear-to-close for you. If there's anything more you need or any questions you have down the line, don't hesitate to reach out.
James and Jill were fantastic to work with. The whole process was fairly painless and everything was explained in great detail.
Reply from William Koumparis, Loan Officer, NM...
January 8th, 2026 04:06 PM
Thank you for sharing your positive experience. I'm glad to hear that the process was smooth and well-explained. If you have any further questions or need assistance in the future, please feel free to reach out.
Very easy to communicate with. Answered all of my questions in language that I could understand. Could not be more pleased with his superior customer service and guidance.
Reply from William Koumparis
December 22nd, 2025 03:46 PM
Thank you for the 5-Star review. If you need anything, feel free to give us a call.
The great communication, punctuality, and guidance.
Reply from William Koumparis
December 10th, 2025 02:11 PM
It was great working with you. Thanks again for putting your trust in us.
positive with success
Reply from William Koumparis
December 5th, 2025 07:09 PM
Helping great customers like you is why I'm in this business. Thank you so much for your business and great feedback.
Support and continued communication.
Reply from William Koumparis
December 5th, 2025 08:27 PM
I enjoyed working with you. Thanks for the great feedback.
the team worked well with me
Reply from William Koumparis
November 28th, 2025 03:04 PM
I am grateful that you took the time out to leave us a response. Let us know how we could have helped you further.
𝓦𝓲𝓵𝓵𝓲𝓪𝓶 𝓚𝓸𝓾𝓶𝓹𝓪𝓻𝓲𝓼 𝓭𝓲𝓭 𝓪𝓷 𝓪𝔀𝓮𝓼𝓸𝓶𝓮 𝓳𝓞𝓫! 𝓨𝓸𝓾 𝓬𝓪𝓷 𝓬𝓵𝓮𝓪𝓻𝓵𝔂 𝓼𝓮𝓮 𝓪𝓷𝓭 𝓯𝓮𝓮𝓵 𝓱𝓲𝓼 𝓵𝓸𝓿𝓮 𝓯𝓸𝓻𝓱𝓲𝓼 𝓬𝓪𝓻𝓮𝓮𝓻 𝓪𝓷𝓭 𝓬𝓵𝓲𝓮𝓷𝓽𝓼. 𝓣𝓱𝓮𝓻𝓮 𝔀𝓪𝓼 𝓬𝓸𝓷𝓼𝓽𝓪𝓷𝓽 𝓬𝓸𝓶𝓾𝓷𝓲𝓬𝓪𝓽𝓲𝓸𝓷...
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Reply from William Koumparis, Loan Officer, NM...
November 25th, 2025 06:49 PM
Thank you both were awesome in helping get the transaction done quickly and efficiently..
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About
As a licensed Loan Originator who is familiar with a variety of loan types and specialized programs, I am ready, willing and able to help you find the mortgage product that is right for you.
Whether you are looking to purchase a personal residence, 2nd home or investment property, or if you need to refinance an existing mortgage, I can find the product that best suits your needs and circumstance. With AFN as your mortgage lender, you have an entire team dedicated to carrying your loan from application, through processing and underwriting and over the finish line where your loan is finalized and funded.
If you have a question, we are a quick phone call or email away, and we always look forward to opportunities to communicate with you.
Products & Services
Mortgage Loan Officer
FHA Home Loan
VA Home Loan
Jumbo Home Loan
Specialities
We are a Direct Lender with delegated authority to underwrite, fund, and service Fannie Mae, Freddie Mac, FHA, USDA, VA, and Jumbo loan products in-house
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Positions
- American Financial Network - Senior Mortgage Loan OriginatorJan 11th, 2020 - Current
Addresses and Serving Areas
Primary Serving Area
Other Serving Areas
Year Started
2020
Time Zone
Pacific Standard Time (PST)
Licenses
- NMLS# 1951011
Disclaimer
American Financial Network, Inc. is an Equal Housing Lender
American Financial Network, Inc. | NMLS ID 237341
10 Pointe Drive, Suite 330, Brea, CA 92821| (714) 831-4000
©2026 All Rights Reserved
NMLS Consumer Access: http://www.nmlsconsumeraccess.org
Licensing | Privacy | Contact Us
American Financial Network, Inc. is licensed by the California Department of Financial Protection and Innovation under the California Financing Law License (6038771) and holds a CA Bureau of Real Estate, Real Estate Broker's License (01317581) under Nationwide Mortgage Licensing System (NMLS), unique identifier of 237341. Broker is performing acts for which a license is required. Loans made or arranged pursuant to California Financing Law. Refer to www.nmlsconsumeraccess.org and input NMLS #237341 to see where American Financial Network, Inc. is a licensed lender. This is not an offer for extension of credit or commitment to lend. All loans must satisfy company underwriting guidelines. Not all applicants qualify. Information and pricing are subject to change at any time and without notice. The content in this advertisement is for informational purposes only. Products not available in all areas. As prohibited by federal law, we do not engage in business practices that discriminate on the basis of race, color, religion, national origin, sex, marital status, age (provided you have the capacity to enter into a binding contract), because all or part of your income may be derived from any public assistance program, or because you have, in good faith, exercised any right under the Consumer Credit Protection Act. The federal agency that administers our compliance with these federal laws is the Federal Trade Commission, Equal Credit Opportunity, Washington, DC, 20580.