I hope this doesn't come off disrespectfully, Donamena. I just had a feeling there may be a misunderstanding here. It seems like you may be thinking the initials "gf" mean grandfather? As in the father of the grandfather owns the business. But we are referring to the father of BSLs girlfriend, so the last name being the same is probably more than a genealogical coincidence.
The first and last name are the same as the girlfriend's father. And the property was previously owned by the girlfriend's paternal grandfather.