Trying to understand if this is valid and a black swan situation, or if tree roots in PVC is more common than I think.   

These are all valid points and very well regarded.

House had foundation repair in 2018 with 10 year warranty (living room floors are a little wobbly)5.

My advice would be no, not worth the time and expense of keeping your license valid if you plan on being a real estate investor.

At $500 new with warranty I do it.

So, then you'd have to do a regular warranty deed which includes a closing and the associated costs.On another note, why have the LLC and the Land Trust? 

If you cannot provide a valid POF then this isnt the deal for you, which is OK.

Notes, Lending, Syndications etc are all valid methods of passive investment!

Maybe your wife is extremely risk adverse due to past experiences or has another valid reason for not wanting to engage in REI...Sounds like you are very successful professionally and happy personally-don’t see a strong enough reason to ‘rock the boat’.

You need to get educated on the product you want to offer so those with money can take you seriously that you have a valid deal to present them that is worth their time and consideration to look at.If you present something that is junk and do not know it is junk the buyers likely never talk to you again.