Just for the record, I can handle property management, but I am thinking I would rather buy low enough to afford to pay for it with my cash flow.

Ask questions, check county records and historical society.

I am aware these numbers are ProForma and I will be doing my due diligence to get proper records but I believe the numbers show promise and deserve to be looked into at the very least.

Yes, if you buy the first mortgage you are in good.You need to look at all the recorded documents for the property to figure out what is going on.

(For the record, though, although the property and health hazards get the news, the biggest issue I see in the I-502 business is under-capitalization.

@William Collins , that is a great question by @Dawn Anastasi and one that you should seriously consider as you draw the map for your future.Alongside answering that question for yourself, consider this question, too:  Where is your experience, track record, and success? 

Put together a business plan and a lender's prospectus (with the deals you've done so you can show people you have a track record).

You can easily earn 6-14% return on your money though writing first and/or second mortgages to other investors.Another almost hands-off approach is to partner with an experienced investor - naturally with a proven track-record of success - in your area - either in direct partnership or purchasing into a syndication.  

We've collected all that data on the size and price of the other duplexes on the street, which is good to keep records of. 

If you don't have a lot of capital to do it on your own, I would team up with an experienced syndicator - he / she has the track record and helps raises the money and you hustle to find the deals.