I doubt the money went to illegals. That much money going to single addresses likely went to organizations like the SEIU. If we can get some actual street numbers, I suspect we’ll know a lot more.
Those addresses are rented by storefront tax preparers who put up those signs in the medians of the road in all the Mexican areas ... Some goes to the mexicans , some to the mafia... some goes to the DNC/Acorn etc.