This protects your investment and gives you leverage if there are issues.Other Tips:Make sure the lease explicitly defines the move-out date.Conduct a thorough walkthrough with documentation before and after the lease period to avoid disputes.Handling a seller-to-tenant situation can be tricky, but with the right precautions, it can work smoothly.

I'm looking for the cleanest & most visible way to access payment history, see amortization schedule, tax documents, etc- much like bank softwares provide. 

It seemed like most the folks you have on staff are CPA or other, but no specific legal experts.

It is an expense, but they keep it all legal and compliant.

I'm sure you're documenting everything.

Quote from @Aaron Letzeiser: REVISED CODE@Aaron LetzeiserI was hoping to work with Obie, but on the last page before signing the documents, I came across this disclaimer, which made me rethink my decision. 

They legally have to have this document filled out if they pay you more than a certain amount over the period of 12 months.

Rent payments from the medical LLC are fully deductible as a business expense, while the property-owning LLC will report the rent as taxable income, which can be offset by deductions for expenses like mortgage interest, property taxes, maintenance, and depreciation.To ensure compliance, document how FMV was determined—using market comparisons, an appraisal, or similar data—and draft a formal lease agreement outlining the terms, rent amount, and responsibilities.

3) Is there an official IRS form where these hours are documented, or would an excel file suffice ?

In addition, we pull our own comps and use Lightning Docs to generate our loan documents.