I know of only one building that allows Mid-Term Rental 1 month or longer.   

They can rent the property they purchase to you (or anyone).The property must be held for investment purposes for at least 24 months immediately following the exchange.

The POHs are $800 a month and the TOH is $300/month.

That's a great place to start, we have over 1000 local members and hold about 20 meet ups a month.

My credit got negatively affected but we’re in the process of building hers ( she had no credit nor bad credit) I think we’ll have her credit above say a 700 in the next 6-12 months.

With a low 4.75% rate but minimal cash flow ($50–$125/month), your equity could likely work harder elsewhere.

But as a percentage of monthly rent, you have to account for 25% vs 10%.  

You don't need to know everything to get started; you need a foundation to build on, and the rest will come through experience and then refining your education.You can build a basic understanding of investing in 3-6 months.

Is saving the fee a PM charges worth the potential thousands in cost and headaches?

I had a project last year that a sub hit a conduit that was marked out and the utility made a claim many months later.