Are you searching for Assisted Living in Bel Air, MD? The Hart Heritage Assisted Living facilities in Harford County, Maryland began 28 years ago, in the comfort of a familys home in the town of Street, Maryland and has grown to be one of Harford Countys most sought-after and respected assisted living providers. The Skidmore family welcomed many elderly family members into their Harford County home. Beginning as a simple gesture of love and kindness and growing. More families in the Harford County and surrounding areas heard about the Skidmore family and the quality, special care they were providing.