She no longer needs to use the full house and could use some income.

They'll be working with me on my next one (looking at other houses now.)

I got a house at what I feel is a super fair price with lots of opportunity.

Maybe there is also liability for the managing company in neglecting to recognize this issue when it could have been resolved earlier, before the water destroyed the basement.From my research, I would need to prove that the seller knew about the issue (water intrusion) and decided not to disclose.

Outside of getting a partner to help, I really don't have any creative solutions for you that won't leave you in the poor house at the end of the day. 

Nor will it clean the house for today's arriving guests when your trusted housekeeper is hungover and no-shows.  

For example, I was in a similar position 4 years ago, I had read the books, listened to the podcast and had my first house hack.

Such a fantastic book, FHA financing is a highly effective house hack and can be combined with a sellers concession or up to 3% with 3.5% down to reduce or completely cover closing costs.

Then the housing stock will degrate, banks will suffer and a circle of misery all around.

Are they hosting open houses, networking with neighbors that might know someone, promoting the listing for the reasons you listed?