That way you are covered for any damages they may cause.  

If not the 5 people and 3 dogs will only cause more damage the longer they stay specifically if they are already violating their lease. 

Seller's agent/agency says they will absorb any additional fees caused by this miss.Current state is our settlement was blown 2 weeks ago. 

Generally it's easier (and much cheaper) to rip off old siding for instance (while wearing PPE) and put vinyl on than going through the "official abatement" process of running water over it and hand scrapping slowly over each 2 foot section as not to cause dust. 

Tenants that live like this have a tendency to allow maintenance to go unreported, which could cause severe structural damage that costs much more than the benefit of having stable tenancy.But in this particular case...he does report maintenance and there are no problems with the apartment despite 30 years of living like this. 

How easy is it to get to the beams, how many beams, Is the original cause of the beams sagging already corrected? 

Sharing a wall and yard with a neighbor tends to bug people and can cause them to move more often. 

The poor workmanship will probably not be covered but they may cover the damage caused by the leaks.

Of course, the police being there could be cause for you to terminate the lease and evict everybody, with all tenants being responsible for full rent until a new tenant can be located.

I won't get into the specific math here cause its nerdy and not necessary, but I spent some time 'fitting a curve' to our data and here is what I came up with: Here's what is going on in this graph: The labels on the X-axis are the median rent for a given city (I am purposely omitting the city names here).