Mary Illes
Mary Illes
Realtor, GRI
How can I help you today?

About Me

Prior to real estate, Mary worked in high technology in sales and partner management for over 20 years.  It was there that she gained the valuable training and experience in negotiating contracts and settlements.  This experience has crossed over well into her practice of real estate.


Mary provides her clients with superior customer service, she strives to make her client’s experience enjoyable and rewarding by listening carefully to their needs.  Her clients range from first time home buyers, to relocation.  Mary is recognized as an Award Winning Top Performer and has continued to maintain her status as a multimillion-dollar top producing agent.  She is a Certified Relocation Specialist, graduate of the Real Estate Institute and Certified Professional Stager.  She is licensed in Washington, DC, Virginia, and Maryland. 

Red or white


Favorite job title

DeDe (aka grandma)

Mountains or ocean


Coffee or tea


Customer Ratings

Mary Illes has been rated by 20 customers


“Mary is a phenomenal realtor. She provided excellent advice throughout the whole sales process. We were very happy with her results. ”
Geoff Cleveland, Arlington, VA (Seller)
“Mary is wonderful to work with. Would recommend her highly!”
Laura Monica, NH (Seller)
“Mary did a great job helping us find and buy our first home! She is very patient and flexible, very easy to work with! We would definitely recommend having Mary as your real estate agent!”
A, Washington DC (Buyer)
“Mary Illes was fantastic at keeping us informed of current listings, helping us make a successful offer and keeping track of all the fine details to close our sale. Mary was professional, helpful and informed. I would definitely recommend Mary to friends and family. ”
Roberta Henn, Hawthorn Woods, IL (Buyer)
“We worked with Mary Illes on a previous purchase and would not have considered anyone else. Mary is one of the most friendly, knowledgeable people I know. She always had time for our questions and she worked tirelessly to make sure we had a great buying experience. Besides being an absolute professional in all ways, Mary is fun to work with and she makes the buying process an enjoyable experience. We have recommended her to several friends, who have also had great experiences. ”
Emily McNally, University Park, MD (Buyer)
“I absolutely have full confidence in Mary Illes. She was able to get my property sold in a quick manner for a price I agreed with. She is a true professional, as well as a great person and I'm glad I had the opportunity to work with her. Lastly, Mary went above and beyond what is expected of real estate broker/agent. Thank you Mary. It was seamless. Awesome job. I can't say enough. I would recommend her to anyone and work with her again. ”
Bobby D, Annapolis (Seller)
“Mary is a great person and professional. Purchasing a real estate with her has been a pleasure. We are so happy that we chose her and we definitely will chose her again in the future and will recommend her to friends of ours.”
Svetoslav Stoykov, Reston (Buyer)
“Mary is a true treasure. The best broker I've used in the nine real estate transactions I've experienced as a seller and buyer during my life time. ”
G.A. Pivik (Seller)
“Mary is incredible. I met her when I was looking for a place a few years, and although I ended up changing my mind about buying then, she stayed in touch with me. I have had 3 transactions with Mary now both buying and selling, and I must say, there's no other agents like her (and I have worked with a few in the past). She's knowledgeable, professional, quick, well-networked and personal. The transactions were quick when other end is smooth and when it's not, Mary goes above and beyond to seal the deal only when I am happy and satisfied. I've recommend Mary to friends and family and they all have had the same great experience as I. So choose Mary because you won't regret it! :)”
Taylor, Silver Spring MD (Seller)
“Mary is great! Quick, efficient, attentive to detail, she made buying my first home an incredibly enjoyable experience. ”
David Guarrera, Washington DC (Buyer)
“Throughout the long and stressful process of buying a house, I could never imagine having any one else by my side other than the AMAZING Mary Illes. She was recommended to me and she was a home run! Throughout the process I felt that Mary wasn't just a complete knowledgable professional but also a friend and trusted advisor. She always looks out for the long term interest of her clients, not just closing a deal.”
Liz Dean, Washington DC (Buyer)
“I have bought and sold numerous properties over the years, and trust is the most important element with regard to the Agent Client relationship, then of course competence technically. Mary was referred to me by a trusted business associate, after which Mary absolutely still managed to exceed expectations in all categories. This was the easiest, most competently executed real estate transaction to which I have ever been a party. I will recommend her to friends and colleagues! Mary is a Gem and was an absolute delight in addition to being supremely competent. Mary is a shining beacon to which all Real Estate Professionals should strive. What else can I say? I live in California and Mary held my hand and guided me through this process patiently and effectively. ”
Martin Gilvary, San Francisco, CA (Seller)
“My wife and I had a very short time to find and buy a house to suit our needs since I was told on short notice that my 89 year old grandmother would be coming to live with me. I met with Mary and went and looked at several houses that would directly support the needs of both my wife and I and my grandmother. We found the perfect house and got the paperwork started. From start to finish Mary was polite, friendly, knowledgeable and just plain fun to be around. This was the easiest and less stressful house buying experience I have had. I would definitely choose Mary to be my realtor again and will most definitely refer family and friends to her.”
John Redmond Woodbridge,VA (Buyer)