Poll: They live ____ Hilltop Farm.
They live ____ Hilltop Farm.
Tricky one.. But you live 'at' an address and people say if you work too much that you live 'at' work, therefore, I would say they live 'at' Hilltop Farm as it is the name of an address. Conversely, you live 'on' a farm and you live 'in' a farm house.