"... a gated community ..." Occam's razor - when your friend moved into this gated community, it is almost certain they had to provide some background informat

"... a gated community ..." Occam's razor - when your friend moved into this gated community, it is almost certain they had to provide some background information, including name to the gated community. Might even had some contractual requirements that needed background checks. This person maybe just looked at the monthly flyer that was stuffed under every owners' door "please welcome Jimmy John Joe Smith living in 123 Fancy St." ...