when ronald granville  a former lawenforcement officer in philadelphia was offered a new job in north carolina this summer he and his wife fiona granville  jumped at the chance to relocate their family they packed up the van and took their two sons on a road trip to scout for a place to live the couple had dreamed of owning their own home and putting down roots but after calculating the cost of a 30year fixedrate mortgage on a threebedroom home in the local market they instead went with a new community of singlefamily rentals in brentwood run by american homes 4 rent  just minutes from lake norman their favorite vacation spot