Business owners won't want to get tied up in litigation and if there is a good chance they will lose, it is easier to simply follow the contract.How would that work with a lower-end tenant? 

Typically, furnished rentals are for shorter term stays, so the tenant is most likely going to be able to deal with whatever your style is.Should be able to command much higher rent depending on the area for a furnished rental - minimum of 50% more than LTR.One option could be to lease the house and sell / lease the furniture in a separate bill of sale / contract.

She did so and left a note with the person who showed her the house. 

It's a duplex in Chattanooga (technically Red Bank) and we will be house hacking for the next couple of years to build some momentum and experience.

One of the strategies I am strongly considering for my first deal is a multifamily house hack.

How are you going to acquire 30 houses free & clear?

I have saved up some money but my goal is to save up at least 20k in a year before I start looking for options on house hacking in a duplex.

House hacking, long-term rentals, or something else?

That being said, we are not in a situation where we can be an owner occupied situation.

With this strategy, we knew exactly how each house was operating and we could intervene or change leadership of the house if necessary to assure operations were going as we expected.