Rentals are a slow and steady.  

My PM is against working with home warranty companies due to their slow response times, unable to fix the issue on time, dragging stuff and always saying "oh we don't cover that one issue "...

It's called a "test ad" and should have been ran during due diligence to test for the demand of your product in that market.

I don't think ill buy another MFG home in Tennessee, its just a bit tougher product to sell as they are less desirable, and the values tend to be much lower than a site built SFR.

New listings have continued to hit the market, bucking seasonality trends commonly seen in the fall, a time when listing and sales activity typically slows as children return to school.

VA Entitlement Restoration: Veterans can restore previously used VA entitlement by:-Selling the original property, repaying their current VA loan in full, and disposing of the home-Allowing a qualified Veteran to assume their current loan and substitute their entitlement for theirs-Refinancing their existing VA loan into a non-VA product and invoking what's known as the "one-time restoration of entitlement."

But getting rich slow is better than getting rich never.

You can try to act as a PM and guest comm from afar but its tough without seeing the physical product sometimes.

The tenant is contesting it in court though, may apply for state assistance, etc and it is going slow.

It's definitely plausible with FHA or there's other conventional 5% products where you can achieve a similar down payment program depending on your state.