Our Team

    Your Neighborhood Experts

Karen Nilsen Brown, Realtor®, ABR, GRI

Known and respected as one of the Top Realtor’s in Northern Virginia, Karen Brown has been in Real Estate for over 25 years. She was born into the profession and worked under her “Superstar Agent” mother, Anita Nilsen for several years. Proud to be a resident of the area for over 40 years, Karen is very active in the community, adopting several philanthropic causes. She is a graduate of Virginia Polytechnic and State University (Virginia Tech) with degrees in Marketing Management and Communications. At the young age of 17, Karen successfully completed the Virginia Licensing Course and became the youngest person in the state to receive her Salesperson’s license. As a Lifetime NVAR Top Producer, and member of the prestigious Long and Foster Founders Club, Karen has both her GRI (Graduate Real Estate Institute) and ABR (Accredited Buyer Representative) designations and she is also an accomplished staging expert. She is passionate, innovative, aggressive and a visionary who believes that the customer experience when buying or selling a home should be second to none. As a mother of five Karen supports many school and extra-curricular activities.

John Nilsen, Realtor®, Associate Broker

John Nilsen, has been a Northern Virginia resident for over 45 years and has seen it all in his 30 year real estate career. Together with his late wife Anita, he built a successful business through their endless dedication to the needs of their clients. Early in his career he became an Associate Broker and helped the Nilsen Team consistently rank in the top 1% of agents in the area. John’s daughter Karen joined The Nilsen Team at the age of 18 and was mentored by her mother for many years. After Anita’s death in 2005, Karen and John decided that Long & Foster was the right place for the Team and their clients. John has since re-married and is semi-retired. He spends part of the winter months at his second home in Venice, Florida together with his wife Helen. While in town, John resides in Potomac Green and assists with daily duties related to inspections, property management, construction, and strategic and financial planning. During his “downtime”, John enjoys golfing, traveling and spending time with his 10 grandchildren.

Ashley Hughes, Director of Operations

Our Director of Operations, Ashley Hughes joined the Karen Brown Team in 2006 as the Marketing Director. Ashley is the “Wizard behind the curtain” and makes our world go round. Her main duties include preserving Karen’s sanity, managing transactions and assisting clients in every aspect of a sale. She is a talented graphic artist and is also responsible for all marketing matters of our business. Ashley is a stickler to details and is genuinely supportive, always looking out for the best interest of our clients and our Team. She also is a Licensed Realtor and has vast experience in dealing with the many facets of buying and selling real estate. Married with two adorable children, Ashley has been a resident of Northern Virginia for over 30 years. Occasionally, she receives a day off, at which time she enjoys spending time with her family, exploring the outdoors and watching sporting events.

Devonte Campbell, Director of Social Media

Devonte Campbell, a Northern Virginia Resident for 19 years, joined Karen Brown Team in early 2014 as an intern and soon became the Director of Social Media. He graduated from Herndon High school in 2013 with Karen’s oldest daughter Alexis and is currently attending college studying Communications and Marketing. Born and bred in Northern Virginia, Devonte fell in love with Real Estate through osmosis while hanging out at The Brown’s. He manages our various social media outlets and is responsible for coming up with innovative ways to use these mediums to reach clients and prospects. In his spare time he enjoys music, travel and fashion.



  • ABR
  • CSP
  • GRI
Karen Brown
Karen Brown

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