They provide strong asset protection, separating your personal finances from your business.

I have a separate account for my real estate properties and keep a base amount there.

But separate disconnected units wouldn't be economically efficient or even feasible for assisted living care once they need it. 

We then stick to that math and we don't get emotional about property.

Property details: 3 bed 2 bath both sides with attached garages, aluminum siding, copper plumbing, 1972 construction, separately metered, all electric water heater, range, dryer, public water and public sewer on a slab foundation in a great school district right next to brand new construction everywhere.

The hard part is actually remaining disciplined to manage that emotion and not losing that conviction when it does get ugly.  

Hey @Dan H. as someone who is experienced, you know not to let emotion or FOMO hinder your judgement.

You should speak to your cpa but if multiple people are paying it then I believe it can be separated as long as it does not exceed the amounts paid and it must be legit

My understanding is the key is to keep separate bank accounts and financial transactions.

In most states all you need is a separate account in a bank in that state.