This can potentially lead to problems and the safety of the others in the home.I am planning on speaking with him about the lease violations and switching him from yearly to monthly with an increase in rent, due to the increased labor of the cat and the checks in of the cleanliness of the room. 

I contemplated appealing it, but I figured I would go after the PM instead, which I plan to do.

For the most part, due to interest rates, breaking the 1% cap rate still won't provide positive return after expenses.

However, if the 401k has business income, it will be subject to UBIT.An IRA is not subject to capital gain taxes because it is a tax-deferred retirement plan.

Lets go under at $800 so now monthly expenses are $3,800.

The time is on your side unless the seller is planning to not sell the property since now he knows that he needs to find a cash buyer to sell the property at the asking price. 

This does pose a challenge since that real estate is a lot more expensive than if you go more west and south.

I plan to utilize some cash, margin loan, 401k loan, and a HELOC as a down payment.My first house hack (now an out of state investment) has a Zestimate of $530K, and I have $266K left on the loan.

Or are you planning to put 100% of the risk/cost of vacancies, furnishings and tenant nonpayment on the owner with you having 0% risk?

You'll need either a POA or schedule an appointment at the nearest U.S. embassy or consulate for document signing - and you need to plan this well in advance!