So first thing they notice is the "landlord" operating property is not the same as entity on deed.

Question 1: Is the maintenance of tall, 2-story trees, a part of the tenant's landscaping and lawn maintenance responsibilities or is it considered part of the property that the landlords are responsible for?

I noticed you are in Austin Tx (I'm in the Ft Worth market as a Landlord, rehabber primarily). 

Many issues could be fixed over the phone or simply denied because it's not a land lord's responsibility.  

Never done arbitrage myself but I have worked with arbitragers in my area as the landlord.

Essentially I would become the landlord and they will be tenents.

At a bare bones minimum, the letter confirms the start/end dates of the lease, monthly rent, paid-through date, absence of any prepaid rent other than the current month, and security deposit amount.Better, it will include statements there are no unresolved claims or disputes or repair issues with the current landlord, and no verbal or written side agreements.Better yet, it will include a copy of the tenant's lease, and a confirmation the lease is a true and correct copy with no amendments.

Landlord friendly. 

Chicago's Residential Landlord and Tenant Ordinance (RLTO) and building codes require that all rental units meet zoning, health, and safety standards.

Whether I find a new tenant or not, the departing tenant moves out after 30 days and is treated like an ordinary termination, which means I process their deposit like normal and they can earn a good landlord reference.2.