I still have that house and it rents for a grand these days. my first house was late 70s that I bought  in those days it was 80 10 and 10  you need 10% cash and normally a private HML would give you the 10% second and bank was the first.. interest on the first was 9% second was 15%.. this was before the Carter interest rate run up.. paid 80k for it in Milpitas CA.. and it was brand new bought it from Shapel . 

And another part of the town considers it to be residential, so it's exempt from most building codes and inspections that would normally apply to hotels. 

So I assume that is normal?  

Rents for medium term rentals usually range from 1.5 times to 2 times the normal rent for a place.

I reached out to the individual marketing the deal to schedule a property viewing, but they’re asking for proof of funds (which I expected) and a signed purchase agreement or LOI.Is this normal?

A deposit at the start of a build is normal, this usually pays for materials and labor to get started.

It could be fast tracked or it could take 6+ months as government stuff normally does. 

Simplified ManagementFor those managing multiple properties, AB 2622 streamlines operations by expanding your hiring pool and removing the red tape often associated with minor repairs.Why It Matters for TenantsTenants also benefit from AB 2622:Faster Maintenance: Minor issues like plumbing or lighting can now be resolved promptly.Fairer Move-Out Costs: Affordable repairs mean tenants aren’t hit with inflated charges for damage beyond normal wear and tear.Things to Keep in MindWhile AB 2622 makes maintenance easier, landlords should still vet unlicensed workers carefully, ensure proper insurance coverage, and remember that jobs requiring permits must involve licensed contractors.AB 2622: A Win-Win for California’s Rental MarketAB 2622 strikes a balance between flexibility and accountability, making it easier for landlords to maintain high-quality rentals while fostering better tenant relationships.

But anyways, I have a stretch where I’ll be gone for several months - mid July through mid October, possibly stretching to the end of the year, and I’m wondering if anyone has any ideas beyond just a normal rental - traveling nurse, etc. that might be good in Nashville. 

It normally doesn't cost you any money to open and to be able to access that large amount of equity to buy or stabalize your current portfolio allows you so much more opportunity costs.For instance, I took a $200K LOC out on my primary residence when I first started in real estate.