Your main issues will be eggress, as usual in a basement.

Now I can see some builders having an issue with comps.. but other than that its crazy to take these funds as income and then pay tax and plow it right back in.. 

Can anyone recommend good companies to root cause  and implement solution to fix this issue?

She’s currently not paying rent, and while she has some health issues and no stable income, she’s been communicative and open to general talks, with a possible option to vacate through a cash-for-keys arrangement, though this might take around six weeks and some hard work.I plan to rehab the property and eventually rent it out, potentially to a Section 8 tenant.

For instance, said property manager manages maintenance issues, problems that arise during bookings, basically anything that needs a physical person at the property, while I manage the rest?

There's a good chance the issue(s) you face has already been discussed and answered.Ask questions in the appropriate forum.

You have a number of issues in your post unfortunately.

A couple issues with Credit/income on paper.

There are cheaper one’s in D/F areas but I would be careful as those can create a laundry list of additional issues.

We agreed to address the issues left by the previous tenant and you did not want us to handle it.