LOWEST Down Payment Strategy on Investment Property?

[Hilde M. L.]

Hello fellow BP fans, I'm a newbie investing in the NY area (an hour from Manhattan). I'm seriously considering this single family that needs renovation in a terrific area and need to act quickly. I know it's usually a 20% down requirement for investment. I have the funds but don't want to tie it all up in the deal.

Does anyone know of a strategy that will require a lot less DP?

Does piggyback mortgages apply to investment properties? 

Thanks so much! :)