You may be able to utilize air dna projections, but, this will come at a rate adjustment usually versus long-term rent. 

The industry found better ways to make pop cans aluminum versus metal, recycling became more common and 35 years later, you don't hear about this anymore.

Currently, there's only one water meter for the entire duplex, and historically, I've been responsible for paying the water bills every month.However, I believe it's time to transition to a system where the water bill is split between the two tenants.

They clearly have terrible systems in place.

To me this actually makes much more sense than the current system, people just don’t like change lol, basically the buyer & thier agent negotiate a fair fee and that fee is no longer being “hidden”. the agent than negotiate’s a concession with the sellers agent, that’s literally it, it’s a totally logical system that makes much more sense then the current one, and I think people (mainly agents who are afraid as soon as the seller realizes they are getting 3%, that they might not be worth it) are just making way to big of a deal of it.

What is the benefit to the land owner to giving you equity versus just hiring another design/build firm and paying them for their contracting services without giving up equity?

Looking for someone to review HVAC systems in a multi-family property - specifically duct work design.  

I'm more focused on trying to find that unique property that I know will be successful in any economy versus trying to time the market. 

It’s also important to keep track of personal versus rental days, as too much personal use can disqualify the property as a rental for tax purposes.

No formula can be accurate across the board because even “cookie cutter” properties next store to each other differ as to view, location to the street, topography of the land, lot size, physical condition of the property, past remodeling, quality of the mechanical systems, sunlight, utility bills, past use, etc.