Naturally, the lease agreement should include language stating that should the income requirements for renewal not be met upon expiration of the lease, that would constitute ground for refusal to renew the lease (or go to month by month).Just thinking out loud here.

But if you plan on getting a conventional loan, this would constitute as mortgage fraud.

The Court will view this as you accepting to renew the Lease Terms based on the existing Agreement (typically a payment of rent, and the Landlord's acceptance of said payment - constitutes a continuity of the Lease).Apologies for the CAPS, Italics and underlines - just using them to emphasize points... don't want you to think I'm yelling at you over the interwebs!

Yes, as has been stated a few times above every state is going to have different regulation around what constitutes a tenant.  

Unlike say a foreclosure action, a tax sale raises serious constitutional concerns.

Your belongings - who I can turn them over to if you die or become incapacitated.Consumable replacement requirements.Smoking and what constitutes smoke.Pet requirements.Guest requirements.Liquid filled furnishings requirements.Condition and maintenance requirements.Pests.

If you feel like it tell her her multiple rants constitute harassing phone calls and any further complaints can be addressed to your lawyer.

There are 7 different things that can constitutes elder abuse,  only 3 or 4 of the action need to happen for it to be a criminal offense. ( oh it makes my blood boil how do you mess with the elderly animals or kids ) sorry I'll try and calm down, any way that's the first thing you need to do because she can't be at grandpas in long beach and the la co jail down town la. 

If a real estate transaction goes sideways, you won't be able to bring a suit against others.Each state will have its own statutes on what constitutes "doing business", etc.

On Schedule E, what constitutes filing taxes as a "Real Estate Professional"?