My eviction team says that the judges here won't take the tenant's word on payment issues and that they must have proof of rent that they claim to have paid.

Once you hold the actual promissory note, you "Automatically" have priority to all other claims.

Taxes: A business can claim much more deductions than an individual (this is a fact) in addition it is much easier for a LLC or S-Corp to qualify as a Real Estate Professional than an individual (the details in IRS publication 925 look for qualification of "Active participation").

If you disqualify them prematurely or without documentation you can get in hot water if they claim you turned them down for the wrong reasons.

pro.com a website that claims to bring instant estimates and trusted reviews

I have been told that is there is an insurance claim and you did not get a permit they can not pay for the improvements you did.

I want to say something like...Seller forefits any interest he may have in the mobile home situated on the property , will not make any attempt now, or in the future to move it or claim ownership of it, and will not hold buyer responsible for.... ???

Should I take her to small claims court?

This is purely my opinion, I haven't done a deal before and don't claim to be an intelligent investor, but this is what I plan on doing in the near future.

How to verify the claimed rental income?