Simplify the following text for a Grade 6 native English-speaking person.
Original: Her father , Robert Erhard ` Bob ' Duff , is a partner and owner in a chain of convenience stores with father John B. Duff and who resides at the family home in Houston to maintain the family 's business .
Simplified: Her mother , Susan Duff , is a producer . Robert Erhard Duff , Haylie 's father , lives at the family home in Houston .