Definitely hire a real estate attorney to draft or review any seller financing agreement to protect your interests.Ask the real estate attorney how to handle the POA situation...can you talk with any of the other property owners who are short term renting out their properties to see what/if they have any issues? 

I've done these deals and we have been able to renegotiate price and terms late in the deal, all while my client's EMD is fully protected either based on an inspection period or based on lack of disclosure. 

I know there is a new tenant protection law but the waiting time is extremely unfair to landlord.

There is nothing wrong with protecting yourself from losses during and right after a pregnancy. 

For one, they typically will not lower the contract price, they need to protect their comps, so the credit has to be used for closing costs, rate buy downs and "upgrades."

Since around 1993 or so, I've always bought investment properties inside an LLC, for the asset protection they're "supposed" to provide.

The only benefit you'd get from a fideicomiso is asset protection so you have to decide if it's worth the cost.

I always try to use NNN when possible since it provides the most financial advantages for the owner and protects them from fluctuations in taxes and property insurance (which is a huge protection here in Texas). 

A well written management contract should clearly spell out what is expected of both the PMC and the owner, to PROTECT both and avoid misunderstandings.

The enhanced tenant protections benefit tenants and landlords, including 30-day notices before rent increases and lease expirations.