The issues you described is a $10-20k repair easy.

For the income to switch to Sch C reporting, you also need to offer services similar to that which a hotel might offer such as daily housekeeping, food/drink, and potentially various other amenities depending on how you'd like to qualify.What you describe is simply changing property managers, it doesn't really matter whose name is on the AirBNB listing.

I am hoping to find the best solution to this situation described below.

My structure is very much like you describe: a management LLC that operates the two LLCs, one is a FL LLC for the properties in Florida and the other a TX Series LLC that owns houses in Texas. 

Your lease should describe guest rights, which should generally be none other than what's allowed in your lease and at the mercy of the person financially responsible.

. :) @@Sejin KimMany of the things you describe are completely normal.  

Since the primary was purchased before 9/27/2017 and was placed in service after 2020, it is not eligible for bonus depreciation.(8)Phase DownIn the case of qualifed property acquired by the taxpayer before September 28, 2017, and placed in service by the taxpayer after September 27, 2017, paragraph (6) shall be applied by substituting for each percentage therein—(A)“50 percent” in the case of—(i)property placed in service before January 1, 2018, and(ii)property described in subparagraph (B) or (C) of paragraph (2) which is placed in service in 2018,(B)“40 percent” in the case of—(i)property placed in service in 2018 (other than property described in subparagraph (B) or (C) of paragraph (2)), and(ii)property described in subparagraph (B) or (C) of paragraph (2) which is placed in service in 2019,(C)“30 percent” in the case of—(i)property placed in service in 2019 (other than property described in subparagraph (B) or (C) of paragraph (2)), and(ii)property described in subparagraph (B) or (C) of paragraph (2) which is placed in service in 2020, and(D)“0 percent” in the case of—(i)property placed in service after 2019 (other than property described in subparagraph (B) or (C) of paragraph (2)), and(ii)property described in subparagraph (B) or (C) of paragraph (2) which is placed in service after 2020.

let's just say I would not describe those areas or properties as Class B.  

What you are describing is called adverse selection - you have a known issue and want to buy an insurance policy to fix your problem because that is less than what it would cost to have the work done and you pay directly to the trades. 

I did a bit more digging on the topic ... it seems the better way to do this is different than I originally described the "second leg" of the txn ... instead of bringing the seller into the LLC itself, you instead create a note and pledge your interest in the LLC as collateral (w/ a UCC filing w/ the state showing this)