I am actually in the process of building a duplex, whether I end up living in it or not is still undecided, but the only reason it penciled out for me was that I got the land for "free".

Seller is the only child, and lives in a far away state (the mom, a widow, is at a rest home not far from the properties I want to buy).

Who do you think is going to get sued if you let a murderer or child molester rent from you and they harm a neighbor?

I’m still undecided on whether I would rent or flip.

Its probably not alimony but child support. 

Here is a story of a girl electrocuted by a faulty dryer without proper grounding:https://www.click2houston.com/news/2018/07/11/child-electrocuted-in-texas-rental-home-that-mother-says-had-electrical-issues-before/Here is a good link to explain grounding and GFCI better:https://www.thespruce.com/what-is-grounding-1152859I am predict within 20 years that code will require dual GFCI / AFCI detection breakers on all circuits. 

When I called the gas company they said the bill was actually in another persons name (my tenants child) Question is.

Also wanting to be able to have some set aside to find a small multi family for an investment property to build wealth for our new little one and begin building a portfolio for childs future.

2019 I purchased a 4 plex with 18 yr old son to get started real estate investing. Son is primary on the loan (so his ssn listed on 1098 but it is a joint ownership mortgage. he is full time student so not making mu...

A multi-single member LLC in Wyoming seems a very odd choice unless you mean a Series, but that will still get each Child Series (as with all Series) subject to the $800 minimum a year Franchise Tax.The only irrevocable trust would be one for your Primary & secondary residence - but then it is expensive to break that, you have to figure out your life expectancy to anticipate the trust ending before the end of your life to get any tax advantages and the QPRT no longer has the incredible tax advantages it used to (though it might in 2026 when/if it reverts back to the old structure) since the sweeping changes of the Tax Cuts and Jobs Act (TCJA) in 2017.