The home needed a lot of work including roofing, windows, siding , kitchen, baths, and mechanicals.

That is just the loan payment and doesn't include your insurance and taxes like a typical mortgage payment does. 

Actually the IRS does not tell us what we can invest in, only what is disallowed (life insurance contracts and collectibles).Allowable investments for SDIRA investing include the following:Residential real estate, including: apartments, single family homes, and duplexesCommercial real estate Undeveloped or raw landREITs (Real Estate Investment Trusts)Real estate notes (mortgages and deeds of trusts)Promissory notes Private limited partnerships, limited liability companies, and C corporationsTax lien certificatesOil and gas investmentsPrivate stock offerings, private placementsJudgments/structured settlementsGold bullion Factoring investments

Purchased for $139,999 using a mix of cash and hard money, we revamped it with modern updates, including a new kitchen, flooring, and fresh paint.The property rented for three years, generating steady cash flow of $450/month.

The OP made this math easier for me, since he let us know that he is clearing $2300 a month after all his fees, so that means the only cost he isn't including in that $2300 would be his principal and interest. 

In Milwaukee the weather can get pretty cold and we want to protect the tenant, but also the pipes in the property from freezing.For that reason we do have a stockpile of emergency equipment which includes electric space heaters.

We would offer more of a budget-friendly option which could include FB marketplace/goodwill -Manages furnished rentals (STR/MTR) for investors.

yes, get a mortgage securitization audit done with Bloomberg report included.  

Common fees will include a set-up fee, a leasing fee for each turnover or a lease renewal fee, marking up maintenance, retaining late fees, and more.

That’s because it can include renting furniture and decor to more fully transform a space.How Do I Know Which One To Pick?