Lately, I have been working on one of my side projects, creating a data warehouse and collecting information about US demographics from the Census Bureau, Bureau of Labor Statistics, Department of justice and other various systems.

If I have a move in, it also states that new tenant will be on the SD settlement check and that it is again between them to handle collection from the new tenant.

So far I have collected 3 months rent from my inherited tenant.

Managing tenants - screening, interviewing, discussing rent collections, etc.3. 

I asked her to sign an agreement of early termination and paid all the remaining balance minus deposit by 3/31/2020 or I will reach out to collection company. 

The seller claims to have only collected rent each month and has no knowledge of the number of tenants occupying the units. 

I don't think I've heard of a GP charging a refinance fee, I would guess it comes out as an operating expense in the LLC so not only does everyone in a way collectively pay for it but you can write it off.

Speak in terms of “We” the collective group.

Is it acceptable to ask for a bank statement verifying rent collecting and or a tax return?

If rent collection is an issue, collect rent twice per month.