What's a typical down payment for commercial multifamily?

I wouldn't bet my life on 50%, but I would bet they are more problematic than the typical long-term renter.

We shall see but it may all be just typical yap yap.

I’m planning to relist the house around April when the market typically picks up.

Expect rates to be higher than "typical" financing programs - right now, I'd plan for at least 8%+ depending on the whole scenario. 

Given your situation, a property closer to Nashville might be more advantageous for short-term rentals like Airbnb, as proximity to a popular city typically attracts more guests and higher rental income.

You can use a tool like AirDNA to get estimates of property performance in your specific market and with your typical size and configuration of home.

Price RangeDefine your financial boundaries based on available capital and borrowing ability:For Class A & B, financing typically covers 75%-80% of the purchase price, allowing you to buy properties in the $6M-$12M range if you have $2.3M total cash.For Class C & D, due to higher risk, the price range might be reduced to $5M-$10M with the same cash.5.

Also, if you buy using a hard money lender or cash, Zach Starnes can do re-fi's off the appraised value shorter than the typical 6mos and then you might not need any money down if you buy at the right price.

I’ve had more success filling vacant units by word of mouth/ networking with other agents in my market recently than I have through the typical advertising methods.