As for work completed, when I had a friend get caught doing work without a permit, he didn't have to pull everything out, but had to pull out pieces to allow inspector to verify work.  

And perhaps in that case, I am thinking to offer them cash for keys to vacate the property (After the property is vacated and condition of the property is verified) rather than hoping that this will get any better. 

What documents do they require, what credit scores do they allow, how do they verify previous rental history, etc.?

I'm looking for recommendations of specific brands that people verify the do remove easily! 

What documents do they require, what credit scores do they allow, how do they verify previous rental history, etc.?

Are buyers/investors picky and particular about what exact parameters house falls under, regardless of how good of an investment it is based on verifiable (not inflated) numbers and metrics from data sources? 

Looking for recommendations on verifying tenants employment and current/previous landlords.

We also note the date the property was sold and the lender can easily verify recording of the documents. 

What documents do they require, what credit scores do they allow, how do they verify previous rental history, etc.?

And if I am paying the tenant anything, I pay them after I verify the work meets my satisfaction.My most likely reaction to their reqeust?