I am not a CPA, but is it possible to modify the S-Corp to be an LLC as well?    

I modified the arm of a skeet thrower to keep a squirrel on the arm when it is released. 

They are a waste of time.I just modified my craigslist ad, offering a $250 gift card if someone rents it starting 1/1.  

If she hasn't, put this on your attorney's plate, as well.This is an important lession you've learned and I am sure you will modify your processes moving forward to avoid this situation in the future. 

Once you see what's getting traction or giving you poor leads, then you can increase your spend and modify key words to go after your target. 

You can craft your own or modify it in the Addendum(s).

https://natlawreview.com/article/texas-federal-court-issues-nationwide-injunction-against-enforcement-corporate“We note this is a preliminary injunction, and we urge reporting companies to pay attention for additional updates and proceedings in this and other cases which could modify or change this order.”

The homesharing endorsement modifies it slightly, but there could still be substantial differences between that and an STR policy written on a commercial form. 

Find a way to modify the outcome so it works in your favor.

But if I believe the universe is perfect and whatever happens is perfect, a tenant leaving without paying the rent simply means I modify my business model so a tenant leaving early won't impact my bottom line adversely anymore.