I asked earlier if folks offer gifts to their tenants at the holidays or move in and I got mixed responses? 

You could do an FHA loan with a gift of equity from your in-laws.

Probably the most you could hope for is that the buyer or seller found value in you bringing them together and one of them gives you a gift card or perhaps some money.

For example, at this time of year we give our tenants a gift card to a local store.

You mention local employers maybe a gift basket followed by a phone call to those HR directors mentioning that you have a place available for new or existing employees.

@Kyle Cortez The parents can gift the property to the child.

It seems like you are being given a gift. $300k over market value and you didn't even have to go through the trouble of listing the house and paying a realtor commission.

Anyone ever gift property to a non-profit.

Would this be possible if the referral incentive was not cash and instead was a gift of some sort?

Down payments on FHA with closing costs are  around $30K to $40K on a $500K buildingYou can even ask the seller to roll the closing costs for $10K and roll it in the loan essentially paying just $20K downFigure out how to save or get that money as a gift.