(Not a lawyer and haven't been through it myself)

I'm always baffled when peoples first response is to contact a lawyer.

My lawyer dropped the ball as well by informing me only 19 days prior to our due date.

Talk to people in the industry - real estate lawyers, contractors, other agents, architects, property managers, surveyors, building inspectors, etc.  

He's going to see (more than one) estate / trust lawyer to find out what his options truly are, but I want to believe he could place all the business assets in a trust of some sort and liquidate them as necessary, which would provide the income necessary to care for his parents, plus some income for him while relieving him of the stress / burden of maintaining the business on his own.Does that sound reasonable?  

Do not agree to any arrangements including paying for a new ac until you speak to your lawyer 

Instead of giving a 60 day notice or evicting I want to have my lawyer write up something myself and the tenant to sign off on that would state that on Jan 31st all items left at property would become mine to do whatever I want to do with it and the lease is terminated without eviction needed since tenant does not live at property whatsoever.

Probably a lawyer question.  

I would highest suggest u and ur ex wife go to a lawyer and get a document agreeing to all the terms.

Pay a lawyer to unify the family's now-divided interest and sell it as one unit?