I'm also relieved that I hired a local real estate attorney to help create a county-specific, legal MTR agreement for our house-hacking situation.

Legally you can claim estoppel and latches as a defense as they let it go on for so many years and you relied on it when buying. 

The good thing about househacking a legal multifamily unit is that lender allows you to use the vacated units of 75% market rent as an income to offset the potential current mortgage.

I'd be surprised if the way they are teaching & doing the lending is legal. 

Is it a legal 3-family on the city card?

I don't think it will be as simple as trying to just undo what the last owner did; you're going to need legal descriptions of each lot and that generally requires a survey. 

Here’s the advice restructured into paragraphs for a forum post:---In an off-market deal, it’s important to understand that the broker typically doesn't owe you a fiduciary duty unless it's explicitly stated in the agreement.

4> Personal Guarantees: Stabilized/ Performing vs Personal creditGoing in all cash on this project, Ultimately want to cash out on the refi, What should personal credit look like (restructuring), Doing the project in my LLC, will my personal credit matter?

When you're on a temporary visa, especially without a clear path to permanent residency, the risk involved can be substantial—both financially and legally.

Now, each lease will be unique, so you can't apply this across all commercial leases, but commonly, LL is responsible for exterior and structural components, while tenant is reponsible for any interior items.How to best explain this: honestly, I would request the tenants have their own legal counsel review their respective leases.