easy. they buy the homes roughly around the same time. lenders do not check whether you are going thru escrow with another property.

my landlord pulled this off in March/April. purchased 4 homes all zero down/100% financed using various subprime lenders at 9% interest rate with a total purchase value of $2.2 million. He is foreclosing on all 4 properties after not making a single payment on any of them.