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Our Team

Keith Miller headshot

Keith Miller

MHN Properties
Owner/ Broker

Keith Miller retired from the United States Air Force in January, 1992, after 20 years of honorable service. That same year he started his real estate career as a sales counselor with a local San Antonio builder and progressed to the Vice President of Sales and Marketing for a large volume builder in Houston. He holds memberships in many distinguished real estate organizations including Texas Real Estate Broker, San Antonio Board of Realtors, Graduate Realtor Institute (GRI), and National Association of Residential Property Managers (NARPM). He is a New Home Construction Specialist, a Multi-million dollar producer and strong supporter of local charities and he was a National Association of Home Builders Gold Medal Winner 7 years in a row. Keith is dedicated to providing an exceptional real estate experience for the purchase, sale or management of your property. Keith enjoys working with clients to establish their needs and aid them in finding the right home or investment property. Keith has many years of experience in managing his own investment properties and properties for others. His knowledge will be invaluable in helping you make the right choice on your next real estate investment. Keith takes great pride in providing one of the most profitable, effectively managed, clearly documented, timely communicated management experience for your real estate assets. If you’re looking for your first home, a first real estate investment or a large commercial building to grow your business, Keith has the skills and experience to serve your needs. Please call Keith at 210-889-0073 or email:

ronnah headshot

Ronnah Nalley-Stabenow

Business Development Manager

Ronnah Nalley-Stabenow, REALTOR® ABR® MPM® RMP® TRLP® CRMB, TRLS, TRPM joined MHN Properties in January 2007 and there hasn’t been a dull moment since. After a decade of overseeing all aspects of the day to day operations of the office Ronnah has now moved into Business Development and Sales. Ronnah enjoys working with clients to help them realize their ambitions of diversifying their investment portfolio with successful real estate investments. She enjoys helping her friends and clients find their dream home and is dedicated to providing exceptional real estate service for all your real estate transactions.

Ronnah is a licensed real estate agent, Past President of the San Antonio Metropolitan Area Chapter of the National Association of Residential Property Managers (NARPM®) and currently working on her Broker’s License. Ronnah also serves as the current Chairman of the Leasing and Property Management Committee at San Antonio Board of Realtors and on the Leasing and Property Management Committee at Texas Realtors® . She was also named Property Management Specialist of the Year for 2018 at SABOR, nominated by her peers. When not hard at work, you can find her spending time with her granddaughter, at the beach or at live music events.

If you would like to set up an appointment with Ronnah, please call or email:

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Courtney Rosen


Courtney has transferred her skills and work ethic from teaching three languages on three different continents taking care of the back end of MHN and also helping people buy, sell, rent and manage real estate in her native San Antonio.Granddaughter and daughter to home builders, she has grown up looking at houses, construction and helping her father fix things around the house. She hopes to get her nearly 2 year old daughter into the family tradition of building, which she currently does with legos.

Call to set up an appointment with Courtney, 210-402-9696 or email

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Melanie Carranza

Administrative Assistant

Melanie is the face of MHN Properties. She will always greet you with a warm smile and do her best in answering the questions you have. She is passionate about making sure all needs are met and bringing joy to the environment. Expect “Thank you!” and “Have a great day!” at the end of your conversation. She foresees all that goes in and out of MHN and is knowledgeable on everyone’s daily tasks. She hopes to bring more peace into MHN as we know property management can get pretty hectic at times. Also hopes to be a member of NARPM in the near future and possibly even getting her Realtor’s license after receiving her degree in Business Management. After hours she enjoys spending time with her son, meeting new people, and making new memories.