If it were my property, unless I wanted to do it for philanthropic reasons, I would look at the cost of the solar roof vs. traditional roof, the benefits, and the payback before I proceeded. 

If you are worried about liabilities get insurance.

You could then use a portion but not necessarily all of the proceeds to take a distribution to yourself and use that as a down payment on a property you want personally in retirement - whether next door to or in a totally different market than the investment property. 

My mortgage/tax/insurance is 367.

Although, if you have the 20% you need already and you're prepared to make payments, you could always use the proceeds from the condo sale to invest in less pricey markets and skip the HELOC process. 

to tag along this post insurance will not cover this type of damage as it was due to non/maintenance 

Also no social security taxes (PERS retirement instead, fully paid for by hospital.) and free health insurance. 

My understanding is that if he can sell the real-estate and convert the proceeds into a non-US situs asset then it can be gifted with no tax.

Now afterward, they told me they would proceed with a more serious fix that would be an actual long term solution to the foundation movement.

. -- I own a house (purchased for 495k, 540k current est. value, 2400 mortgage + insurance/taxes).