We're just looking big picture at how we can spend the least money overall, and the debt is the debt and eventually is going to have to come from somewhere, right? 

All of that can be done without spending a dime or needing a partner.

Then we got a bunch of homes back which were abandoned and trashed that we had to spend thousands on just to get into “handyman special” status.What part of NY is this park in?

You may have to foreclose and kick someone out of their houseThat the city will condemn the property due to its unsanitary condition that the borrower was living in, and won't release it back to you as the rightful owner until you jump through a million hoops and needlessly spend an exorbitant amount of money on their "city approved" contractors. 

Treat that as your seed money...that you never spend, but use to infinity.2 - Flip the new $2M over and over taking the profits (ONLY) and use them as down payments on NNN properties. 

These are the major banks providing loans to foreigners as I checked online.I am planning on spending 1 mil this year in rental properties in US and looking for a lender with a long term relationship who could leverage and extend my property portfolio.

People spend all their time searching for a 1% rule house and pass on all the good .95% houses that are in solid neighborhoods that will get appreciation. 

Spend some time educating yourself first to the point where you feel you have learned the ropes enough to jump in.

Land lording is a PEOPLE business first, and a property business second.You will spend the same money replacing a roof on a C unit as on a B unit. 

I would spend time learning and saving before making a move.