Donegal Real Estate on West Market Street in Marietta is owned and operated by Bob Heiserman, a Lancaster County native. Bob opened Donegal Real Estate in 1988 and has been serving people in Marietta and Northwest Lancaster County ever since. He says what he likes most about his work is “solving problems for families.” Bob wears more than one hat in his business. In addition to listing and selling real estate, he appraises properties and instructs real estate and appraisal cl