how to subject to existing mortgage in brooklyn ny

[Ralphy Rosado]

Hello everyone, I'm interested in doing my first (subject to existing mortgage) and also first flip in Brooklyn NY on multi family building that i will like to keep as rental properties and do the burr any tips. I have good credit .. I have invested in many rental rehab in the last 5 years and now own 5 but I've never done a (subject to) or( short sale ) I've always use my own cash, card cards, loans, or hard money.. . I want to invest where I live but as you may know houses in brooklyn are not cheap any tips, any one want to partner up, I'm willing to be a good student and learn and work for free to learn I really love this business ..

Thank You for your Time!!!