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 is the true professional,and the under writers are very helpful and knowledgeable. Will pass this along to any one who needs help with there house refinance.
Reply from William Koumparis
November 25th, 2025 03:03 PM
Helping great customers like you is why I'm in this business. Thank you so much for your business and great feedback.
Great assistance knowledge and professional
Reply from William Koumparis
November 25th, 2025 03:12 PM
I really appreciate the feedback and am looking forward to working with you again.
Mr. Koumparis was wonderful, through the lengthy process. Unfortunately, whoever handled the rest of the process was unnerving. 1.I was asked to get financial information the day before they 'urgently' needed it. They had months to ask me....
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Reply from William Koumparis
November 17th, 2025 02:10 PM
I really appreciate the feedback and am looking forward to working with you again.
James and Tessa were amazing and the process was fairly easy. Thanks to all of you whom assisted with this loan. Cheers!
Reply from Owner
November 29th, 2025 12:00 AM
Thank you for your wonderful feedback, Joshua! We're thrilled to hear that James and Tessa provided you with excellent service and made the loan process easy for you. Your kind words will certainly be shared with the team. We appreciate your...
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William is very responsive and answers all my questions thoroughly easing my nervousness through the process.
Reply from William Koumparis
November 3rd, 2025 05:21 PM
I really appreciate the feedback and am looking forward to working with you again.
I had to jump through all kinds of hoops to have the needed documents in a timely manner. I realize I'm no his only client, however when you ask questions during my work day, I cannot drop everything I'm doing to respond. I work in a very busy...
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Reply from William Koumparis
October 14th, 2025 06:46 PM
Thank you for your response. If there is anything we can do to improve our offering, please let us know.
William and Jill answered all of our questions and made the process easy
Reply from William Koumparis
September 28th, 2025 01:48 PM
We hope we'll have the opportunity to serve you again and deliver exceptional services.
Communication, feedback, and transparency of team.
Reply from William Koumparis
September 19th, 2025 11:50 AM
I really appreciate the feedback and am looking forward to working with you again.
Ease of communication and quick reaponses to all of my questions throughout the loan process
Reply from William Koumparis
September 13th, 2025 12:04 PM
I enjoyed working with you. Thanks for the great feedback.
Will kept great communication throughout the whole process.
Reply from William Koumparis
September 11th, 2025 06:42 PM
We hope we'll have the opportunity to serve you again and deliver exceptional services.
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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.