There are also additional costs of operating and maintaining an LLC, like separate bank accounts, annual report filings, tax filings, etc.2.

Source: I separated a multi-owner LLC building prior to closing to exchange into a property I own solely.

But after that ... hell, move out and you've got a duplex in what otherwise would have been single-family zoning.As it used to be in Denver and Colorado Springs and most cities in the state, you could rent an ADU separately when you live there, but once you moved out, you legally could only rent the whole property to one party. 

There is one book for 49 states and a separate book for California. 

@Carl RowlesI would keep the property's finances separate from your personal finances, as you have suggested.

Im not sure I completely understand what you're trying to calculate but I would go about it using Excel or Google Sheets and create a "master" and a separate sheet for each property. 

The agency docs have made the separation a bit more clear.

They may have a separate system or entity that is used for holding properties vs the business itself for legal protection.

So now when they travel to Paducah KY for their kids traveling sports tournament, they are searching out Airbnb's instead of the Hampton Inn, in a town no one thinks of as an Airbnb hotspot.For work travel I'll stay in a hotel, but for ANY and ALL family travel, there's no way I'm giving up having a separate room for each of my kids.My mountain market revenue is flat-ish to up, but that's because I took over management from a PM and was able to do a much better job, so it's hard to get a pulse on my local market.

The GIS map designates it as a single-family dwelling, but the property is clearly set up as two units, with separate HVAC, electrical systems, etc.My main question is: Would it be possible to obtain a permit to legally convert it into a two-unit property?