For STRs, those limits don’t apply.

Your property policy "should" help you when this happens, but likely has certain monetary limits in place. 

Nashville has plenty of hospitals (travel nurses) but also people stay over 30 days for tons of reasons.Here are some of my current questions:- How much of an application do you do and why?

So yeah, my sympathy potential is VERY limited.

When 2% was no longer applicable, it turned into the 1% rule maybe 8 years ago.Now, the 'general rule' is that you may need to put down 40% to make it cash-flowBest of luck!

Many successful investors started where you are: solid equity, limited cash, and a long-term career base.

7) We've had many clients buy an occupied rental and hire us to manage it, but they never got: lease, rental ledger, tenant contact info, tenant ID and application info!

IDKCurrently considering opening a FB business account and posting my rentals as a sponsored listing with an FB allowed link to my property manager's application webpage. 

It sounds like finding the right 2–4 unit deal here might take quite a while with how limited the inventory is.In your opinion, would it make more sense for someone in my position (new to the area and just building credit) to start with a single-family property or explore another investing strategy first before jumping into multifamily?

Seems like most are within the city limits where the population is more dense.