Downpayment OPM for Multi

[Tiffany Porter]

Question, my first home is a SF. I want to purchase a 3 family as my second purchase. The town I'm looking to purchase in is about 90 miles (2.5 hrs) from my home. I know I'll have to put down 20-25%, but I wanted to know if I have someone that will loan me the downpayment money, lets just say $40-60,000, what type of deal do I work out? Or does this sound ridiculous, because how in the world would I give this person back their money plus interest? Has this been done before? I'm not flipping the home, only looking for cash flow/landlord. What other options do I have besides a HELOC (which I am also considering, but holding off on because my mortgage payment is so low and I know with a HELOC it will increase). All the help in the world would be great!!! Thanks