Im not sure what bloods gang it is, but it seems theres a number of them in that city. Members of ms 13 were also busted back in 2008 in the atlanta area for running the same scam.

In san diego another gang who i think are the lincoln park bloods got busted for this and also running a $100 million mortgage fraud scheme back in 2009.

I think quite a few gangs are either using it as a way to raise money to invest in drug purchases or just for simple profit.