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About Metropolitan Mortgage Services

Office: 202-965-9814 | Email:

Diane B. Cook, president of Metropolitan Mortgage Services, L.L.C.(MMS) has been in mortgage banking since 1986. Prior to starting MMS, Diane worked at Citibank for several years and then partnered with two other top loan officers in the Washington, D.C., area to start her first mortgage brokerage firm in 1992.

In May of 1996, Diane founded MMS to provide more personalized services to her clients. In addition to traditional mortgage services, MMS provides a variety of programs and products customized to fit clients' credit needs. Diane works closely and diligently with every client throughout the entire loan process. Most of her clients are referrals from previous clients, Realtors and financial planners with whom she has had long-term business relationships.

Diane is a mortgage broker licensed in Washington, D.C., Maryland, and Virginia. She served as Treasurer of the Maryland Association of Mortgage Brokers from 1995-2000. Diane is one of only a few mortgage brokers in the United States who holds the national designation as Certified Residential Mortgage Specialist through the National Association of Mortgage Brokers. She also holds a real estate license in Washington, D. C., and is very knowledgeable about the real estate market in the tri-state area.

Diane is a proud member and past president (2005 & 2006) of the Metronet networking group in Maryland. Diane holds an undergraduate degree from Towson University and a masters' degree from Loyola College, both in Baltimore, Maryland.

Our client, Noah, says: "Thanks for everything. I know you went above and beyond the call on my refinance. Everything went well yesterday. Thanks again for everything. Although I may not need to refinance in the future, I will refer anyone who asks to you because you are a terrific mortgage broker."

We are licensed in Washington, D.C., Maryland, and Virginia:

Government of the District of Columbia
Department of Insurance, Securities and Banking - Banking Bureau - License #MLB 3547

State of Maryland
Department of Labor, Licensing and Regulation - Commissioner of Financial Regulation - License #3991

State of Virginia
Virginia State Corporation Commission - License #

Nationwide Mortgage Licensing System (NMLS)

Metropolitan Mortgage Services - License #192458 
Diane B. Cook (Owner) - License #

Our client, Betty, says: "I am particularly grateful for your personal touch in helping us through this process. It meant a great deal to us...Thanks for making an anxiety producing time less stressful."


Office: 202-965-9814 | Cell: 202-270-4003 | Fax: 202-965-9816 | Email: