(Both toilet supply line failures if that’s worth anything.)I went with their remediation company (Service-pro) and their contractors for a few reasons. 1)They started everything the day of the leak/flooding. 2) They guaranteed everything, out of pocket costs, timeline, quality of work, a year to find any defects, etc etc  3) it was quick, painless, worry free.

Getting a 6% instead of a 6.5% doesn't save you squat if you have to bid $30k over asking with an appraisal gap and then replace the roof 6 months after you buy the property because you had to waive the inspection. 

I spoke with the tenant and said the shower will be needing new tile so while the toilet will be operable, the shower won't.

I generally gave them some time to move but if they squatted we had to evict..

The same would be said for the plumbing work, however I would not be doing much besides typical toilet, faucet, and sink repairs. 

Project included new windows, new doors, new siding, new floors, new bathrooms (vanities, toilets, shower, lighting), new kitchen (appliances, sink, granite counters, cabinets, lighting), new paint, new pool liner, new landscaping.

I would encourage you to focus just as much on street smarts - what does and doesn't work in your local market, who can you call about that toilet, how will you answer the question about four pit bulls, etc. 

No good budget...could be a faucet or toilet....could be a broken line somewhere, multiple somewheres.

If the toilets don't pass the ADA test, I would definitely go that route. 

So, what you see is the part that's caved in is the ceiling directly below the toilet of the tenant upstairs.