If you're purchasing (or refinancing an existing mortgage) the minimum down payment (or equity) requirement with the 203k home loan is only 3.5% (i.e. $100,000 X 3.5% = $3,500).
Home buyers are allowed to obtain a monetary gift from eligible donors to cover the down payment. In fact, the down payment and closing costs and pre-paid expenses can be paid by an eligible donor(s).
There are numerous down payment and/or closing cost assistance grants available to qualified home buyers. All of the Federal Home Loan Banks provide assistance to eligible home buyers.
REFERENCE:
http://www.anytimeestimate.com/FHA/pa-fha.htm
Federal grants for first time home buyers