Question on Assumable Loans / Creative Financing

[Alex Hymanson]

Hi all - Wondering about a creative financing situation..hope someone can help!

I've come across a potential deal with an assumable FHA loan at ~3% interest rate on a $600k property. There's about $350k left on the loan, so would need to come up with $250k to assume the current loan. Are lenders out there that would lend on a 2nd mortgage for a piece of the $250k that has been paid off? If so, are there any stipulations to be aware of? Thanks!