Just hoping I can protect myself from the deluge of stupidity. 

I also have some knowledge of LA rebt control, evictions, basic asset protection and have some decent LA resources at my disposal and am more than happy to share anything i have/know (for fun and for free)looking forward to seeing what other markets people are having success in and actually getting deals- i looked at milwaukee at suggestion of a friend and seems like I'm a year too late there.

Where do we get best lease that will hold up in court and protect our interests.

Is it ironclad protection of other assets to put a rental property into an LLC? 

Unfortunately, you're going to run into problems with Fair Housing Laws and protected classes in the way that you're presenting it.

I thought this would be best for asset protection and to do it when I had time.

She was taken advantage of after suffering home damage during Hurricane Harvey (2017) and lost almost all of her savings.

The protections mostly revolve around liability like if you get sued by a contractor, buyer, tenant, or someone getting injured on your property. 

Bottomline, rental property is an investment and it is essential that you protect your investment.

I was wondering how an ADU is looked at in terms of insurance and asset protection?