Looking for suggestions on any specific building materials, fixtures, accessories, furniture, and tech for a STR.  

Their algo isn't sophisticated enough, yet, to accommodate natural disasters and inventory shortages so it's most likely responding to the incredible demand (and unaware of the legal implications).

Podcasts on the way to and from work, and read a book right before bed, maybe even squeeze a few minutes into browsing some specific topics in the forums.

Double check your lease, all the legalities and still check with the landlord....

Yep - My firm can do this for rate-term refinances and/or acquisitions, with stipulations (specifically for 85% LTV): Min DSCR of 1.25x+, Min FICO of 720+, SFRs.

My line of thinking is, Airbnb allows "Legal Entities", IE a multi member business. 

Any legal issues I should be aware of in this situation? 

Also, if your unit was not previously listed within the year at a specific rate, you may definitely be able to list your unit at what the market is currently.

Growing Your Business & Standing OutDifferentiate Through Specialization – The best way to stand out is to be the expert in a specific niche—whether that’s value-add multifamily in a certain region, small-bay industrial, or mixed-use retail redevelopment.

If you wish to network or ask specific questions about your local market, you can go to your local real estate forum and discuss with investors from your area: https://www.biggerpockets.com/forums/86-local-real-estate-networking 5.