If anyone can help me to find the proper form for an assignment please do so.  

If installed properly it should last a long time.

Unless there is money at M&D bank (Mom and Dad), you should be working with professionals that understand how to properly assess their risk.

My midlife crisis:I never got my degree and I never joined the military so I lack a proper education.Former FSBO.

To ensure everything is done properly, run it through a title company.

This should be a case by case basis depending on the condition of the system and if the failure to perform regular maintenance was a contributing factor.Note:  For HVAC the Trane warranty states that they can request documentation of proper preventive maintenance.The other option is to buy an extended warranty through a third party reputable, financially sound, reseller like "Squaretrade"The last option is to buy the house and Not the appliances and HVAC\Heat System and rent the appliances from the original owner. 

I have always bought turnkey properties, which I think are a lot safer (assuming proper due diligence on the company) for buying sight unseen.

Maybe this is the new "pair of shoes dangling from the electric pole" signal that there are drugs available for sale?

I've wanted to learn this business for a long time and I think I'm at a point in my life where I can devote the proper amount of time to do so.

When implemented properly it increases the barrier to entry significantly for any would-be litigant while also drawing into question their confidence in an actual payout.