Does perspective tenant 1 have legal grounds to sue me?

Unless you made an agreement with pt1 them in writing it would likely fail, as an agreement for real estate in AZ longer than a year are required...

You shouldn't have to do anything...YOU still own the property...

This is a common battleground between LL & T...the LL is attempting to get any last $$ out of their leaving T. Up to you on whether you want to...

What terms are binding on my lease, if there are discrepancies throughout?

Yes, send the LL the proper statutory notices to repair (assuming it is the LL's duty to maintain) under the AZ Residential LL/T Act - A.R.S. Title...

Who can I sue for withholding vital easement information.

I've never heard of a home inspector checking for easements...their job is to inspect the physical home, and usually doesn't include plumbing and...

Unless there are any particular rules in your state, a tenant will be able to sue a landlord under a lease AND the property owner, if they are...

You've answered your own question..."I am responsible for landscaping and yard maintenance" How do you expect the plants to get watered? You are...

Depends on your lease, what is leased, maintenance, etc...ultimately a discussion with them about this should help resolve this issue. Lawyers cost...

In a case of non payment of rent with a month to month lease term can a LL decide to wait 12 months than choose to evict?

You don't get free rent because your LL didn't choose to instantly collect.

Considering breaking lease early. Lease has breaking lease penalty, but doesn't specify. Is that legal?

Would need to review the specific document in question.