Yes, you can ask them to be out by 10/29, but if they don't leave what will it cost you in terms of eviction costs, lost rent, damages, etc.2.

It could be an easy fix like this or a bigger problem depending on the factors at play (are the joists accessible, will it mess anything else up if you just jack it up and reinforce, is there water damage or structural damage to the foundation causing the sag instead of just old joists, anything else going on like a supporting wall or posts under the floor, wiring or plumbing runs involved etc.).

He is now out of the hospital and wanting to return to the property due to it being only about 3 blocks from the medical district where he has his doctors and does his breathing treatments.I can request proof of his admittance and wife's admittance if need be but I believe what he is saying is legit. 

For a 3,000 square foot house here is how much these “disasters” can costFoundation - up to $75,000Mold - Up to $150,000Termite damage - $40,000Structural issues - unfixable  

Maybe look around and see what "stumbling block" others are having and create a solution for that.  

The only issue I had with them was several were missing hardware and shelves and some were damaged.

Oakland will vary block by block and CA has very pro-tenant laws.

The end result is the non pet owners will end up paying a rent that supplements the pet owners due to increased risk (pet damage) requires increased income.  

So when using commercial loans on multi-family properties we always run into the same block - where do we get our downpayment from? 

They might also countersue you for damages or the judge might just award damages, because if you can't support your title claim then filing a spurious  lis pendens can be considered slander of title.