When they don’t pay it destroys relationships.

The reason I say that is you are destroying value (perfectly decent countertops) to make try to add value.

Co-mingling funds could destroy the LLC.However, as the owner of an LLC, you can put money into the LLC. 

They should always be under control of the owner, not allowed to roam free, not allowed to bark, can't destroy the property, etc.

The people I've known who have been successful in this business- successfully in their own terms of it, meaning owning a rental or two up to unbelievable wealth in real estate, all, all, all had a tight REIGN On their business (Notice I said business, and not investment- because to buy this business costs money, the money is invested in that you might be able to get that money back unless you lose the business to the bank or it is destroyed by your customers).

If we are dreaming let us go ahead and stop outsourcing manufacturing, and stop bringing in unskilled labor by the millions to destroy middle class and working class communities.

If it was useable before (small ding) and is now destroyed, I'd take her up on her offer, but I'd also pay some of the costs as it wasn't new when she moved in. 

That completely destroys your demand thought process.If rates drop even lower than that, then locked-in rate holders are going to become amenable to selling.

Rule #5: Turn your rentals into bunkers as tenants are tenants and they will destroy your property through "Wear and Tear".

For example, if your ADU had a Replacement (rebuilding cost) of $100,000 and was 30% depreciated and was totally destroyed.