@Dave Naphy- yes - you can use a HELOC for  down payment funds ...make sure you tell your lender your plans so that they can factor in the accurate HELOC payment information into your qualification ratios .....some lenders  will use the actual heloc payment and some lenders will use a percentage of the line amount so make sure 

We're in the middle of low season with an average booking window of 30 days so I'm not expecting a lot of tangible performance improvements until early September.Re: Revenue management, is there anything I'm missing to improve this area? 

I don't really care if one party moves out, but that doesn't mean they don't have to perform. 

If the software is not simplifying your life or making you more accurate, you shouldn't use it.

Considerations:-Cost to build at $350/sqft -Estimated value of 1,000sqft DADU (3bd / 2ba) after completion: $600K-Estimated after completion value of 2,000sqft single family (4bd / 3ba): $900K-Estimated after completion value of 1,000sqft ADU (3bd / 2ba) after completion: $550K The real question is, how accurate are the numbers and how much wiggle room do you have.

It's more of a luxury property but supposedly they can perform really well as full time rentals.

Very few realtors understand how to accurately  calculate cap rates and many throw out high cap rate numbers merely to lure In unsophisticated investors who don’t know any better.

Is this consistent with what I should expect to pay for the returns I had performed?

You can allocate expenses to each property/LLC during your accounting processes, but make sure to maintain clear records and documentation for each expense related to the specific LLC.Detailed Tracking: As you scale up, accurate record-keeping becomes crucial.

It might be best to run numbers on existing and see if by goin with a new build can perform better.