He claims he should not be responsible and refuses to accept responsibility for remedying it on his own.

You want to make sure you’re not inadvertently targeting a protected class or opening yourself up to claims of doing so. 

The lender claims this is the only the title company  that provides the suitable title insurance policy 

He’s from out of state and claims to be relocating for work.

Is their customer support responsive and available whenever you have needed them?  

After removing the window, the tenant started raising concerns of exposure to Asbestos (tenant claims to be an expert in Asbestos).

After removing the window, the tenant started raising concerns of exposure to Asbestos (tenant claims to be an expert in Asbestos).

@Russ SmithI'm a custom and spec home builder.

And why have an eviction on their record when all they have to do is give me proof they have no more claim on the unit. 

the old leases run with the property and are as valid with the old owners signature, as though you had signed it yourself. you can both sign an addendum stating that ownership has changed, but that would be redundant from a contract perspective. more importantly, before taking possession, you want an estoppel agreement signed by current owner and tenant which agrees to the current rents, deposits, and contract terms. otherwise you can take possession and tenant can claim he has prepaid rent for next 3 month or old owner verbally agreed to let him have 5 large dogs.