You got me curious about this and I called 3 more parishes where I buy tax sales and none of them break up the tax bills based on the % the tax deed purchaser bid at the tax sale.

It's a way of keeping the property separate so you can break up with the partner at any time if needed and do your own 1031s down the road. 

I would avoid trying to break up Dallas/Fort Worth this way.

Ultimately, I had to break up the basement slab and run new PVC sewer line in the basement, then pour new concrete.

Things always change, break-ups always occur, so you need to decide how to address each of the possibilities.

Another big ticket item is on the porch- it's about 80 sqft of concrete that we may break up and do over.

If they break up, not your problem.

We could break up the sale of business and house if that makes it easier.I'm estimating that they currently make around 40-60k a year for about 3 months of work which is based on the numbers I know and some google maps information.

Here are my (thus far unsubstantiated) concerns:  (1) once they turn 21 there will be irresponsible use of alcohol involving visitors to my property; (2)  they are too immature to respect other peoples' property and will not take care of the apartment; (3) when they break up in 3 months, I'll be back to square one - this time in the dead of winter.I could do a guarantor, but here in NYS we cannot collect any additional deposit beyond one month's rent, so I would have another person to seek damages from, but they would not have any monetary "skin in the game." 

By the way, my definition of marriage is that you need an attorney to break up.