Mary O'Neill - REALTOR ® MD, VA

With years of experience in real estate, marketing, and customer service, I’m committed to bringing knowledge, skill, and dedication to every client I serve. Whether it’s finding your ideal home or maximizing the value of your sale, I focus on your unique needs. I use my expertise in social media marketing, web design, and video editing to create standout marketing strategies that get results. Every step is handled with care, attention to detail, and integrity—so you feel confident and supported the whole way through.  

As part of The Bluehus Real Estate Group at Fairfax Realty of Tysons, I am backed by a team with decades of experience and an outstanding track record. Our mission is to make homeownership not just possible, but affordable. We help buyers secure valuable grants and work with sellers to save thousands with multi-tiered commission plans. 

When I’m not working, you’ll find me spending time with family and friends, exploring DC, discovering live music and delicious food, or enjoying time outdoors walking, meditating, and staying active. I also love creating—whether it’s homemade aromatherapy gifts or getting inspired with graphic and interior design—and sharing my favorite finds and moments on social media. 

Owning a home is such a personal milestone—it’s where memories are made, connections grow, and dreams come to life. With me, you’ll have a trusted partner who understands that a home is more than just a transaction—it’s a space that represents safety, pride, and connection. Let’s make it happen together!