As in two or three years living with this person whose shall we say lifestyle is so uncomfortable to you???

Personally, I would do the research first, get all the answers confirmed and then look into the market to do a deal.  

A true DSCR product doesn’t care about your personal debt. 

If one person stops paying and it's tolerated, It's more likely to spread within the house.

@Joseph MuleroTo boost your rent plan and make more money in the medium-length rent market, think about these steps: slowly add furniture to the new place while you stay in your current home, pick cheap furniture, use a credit card with good terms, look into loan options like personal loans or home equity credit lines, try out the market by listing the place with few furniture pieces, aim for easy-to-change furniture for flexibility, and talk to pros like real estate agents or home decorators.

Q3: My personal rentals have not, but I bought in Lawton, OK because that was my duty station.

The person you mentioned has no formal credit background.

The only PITIA paid from personal account is for a personal residence.

My personal return is fairly complicated with Trusts, partnerships, W-2s, and several K1s.

Recently she changed her will and named us as personal representatives and is leaving us her property when she passes(crazy I know).