Based on what transpired, I would just cancel the deal.

Since my original post, the following has transpired:1. 

I am not sure what all transpired but this is why we preach CUSTOMER SERVICE IS KEY.

Incomes will rise to help offset inflation, competition will drive prices up to levels that make investors pull their money and head for greener pastures, migration to cheaper markets should occur to balance out the disparities, etc.There seem to be a lot of hands on a lot of levers these days though, so who knows if any of this will actually transpire.

And not just with what transpires in the transaction, but how you emotionally and personally manage all the nuances & challenges that will occur.Good luck to you Sir, Dave 

It's not your home yet, so I would work through the Seller to stay on top of what's transpired so far and what the family is planning to do.

In the meantime, maybe to keep your current bookings in place and not lose that income, you could work with a mediator to explain that you will seek a full time renter after these current bookings have transpired. 

The lumber market is still elevated year over year, but it is starting to correct.I can’t say if what has transpired justifies the price of lumber, but we live in a country with a free market system.

As for the posts and getting prickly, I didn't see everything that transpired but tried to explain that reasonably a couple of days ago, yet you insist on relitigating the matter.

This will be long-winded, but I want to convey that there is a lesson to be learned here: what transpired could have been prevented with better questions from me and better communication from a property manager and plumbing contractor. - The plumbing in these buildings is very old - For every big piece of renovation I have been doing in the unit, I notified the property manager via email and asked if there would be any objections because I know that HOAs can be difficult to deal with. - PM gave me the OK to schedule my own plumber (reputable, licensed, insured) to perform work on my unit. - My plumber notices that many common area shut off valves are seized and almost all shut off valves in my unit are seized. - After testing the shut off valves in the basement storage room, one of the hot water valves started leaking.