We are in contract with a mulit-unit home (2 duplexes and 1 single family home) on the North Shore of Oahu and looking into the idea of opening up a Group Home for Senior or Assisted Living.

If anyone has any insight or suggestions on whether to obtain lending from Canadian or American Banks it would be greatly appreciated.Also my wife is an American citizen.

You made a costly mistake, and any senior investor here  saying they have never made one is lying.

The truth is, about 99.5% of lenders who offer conventional mortgages in the US won't lend to someone who isn't based in the US, even if that person is a US citizen living abroad or works for a US company.

If the American citizen only knew!

I am a US citizen working overseas and wanted to buy an investment property in the US.

Don't believe me, just visit a Walmart and ask the Senior greeting people at the door how there 401(k) worked out for em. 

If you buy the foreclosure of a junior lien (ex HOA fees or 2nd mortgage), then a senior lien (ex 1st mortgage/note) will survive the foreclosure, and still be attached to the property.Yes, I'm sure the lender would love for you to pay it off. 

Assuming there are no federal or state liens, the county tax liens will be the most senior, the city will be next, and then the rest of the liens will be prioritized in the chronological order they were recorded. 

I am reaching out because I've been seeing articles about a senior housing crisis or lack of housing for elderly individuals.