All 4 rooms would share the one bathroom in the main house (which is my major concern).  

If the current tenant has a good track record of paying on time then this may not be a major issue.

Any major issues or difficulties?

Please note the majority of wholesale deals these days are more retail buyer #'s and not deals for me. 

Looking for recommendations for a good platform where I can get reliable SFR sold and rental comps for most of the major markets across the Southeast, South, and Southwest US, including non-disclosure states like TX, LA, and MS

I did a major renovation with some higher end finishes. 

I do a majority of my business in the Saint Paul market and most my clients that are staying in the market are taking advantage.

Raise the rent not one penny less than $2100 even if the apartment needs major work. 

What's the major source of income in that area?

The majority of the multi inventory I come across in the city tends to be 4 walls and some joists, coming with a 6 figure acquisition and a 6 figure rehab cost.