The golf sim will help garner more bookings but I do not think you can count on it to generate a specific amount of revenue.The ADU I would get real world prices on cost from a GC and then calculate the return based on other units with ADU in your area or if no comps you can get an idea by +1 the bed and bath and looking at larger comps in your area.  

Prices are also area specific , if you live in an area with a high cost of living , you will pay more . 

Maryam,I am over here in Pinellas County by the Gulf Beaches are you loooking in any specific counties?

It serves as a designation for professionals actively involved in the oversight and operation of their rental portfolios.Summary of Requirements:To qualify for Real Estate Professional Status, investors must fulfill two key criteria:50% Rule: Allocate over 50% of all annual personal service hours to real property trades or businesses.750-Hour Threshold: Spend more than 750 hours materially participating in specified real property activities, including rental operations.Navigating these criteria demands meticulous attention to detail and a thorough understanding of IRS regulations.

I always recommend finding the information yourself but here’s what I know.The city is divided into a handful of districts and only a certain number of STR permits are issued in each district depending on various criteria.

We have a program that will go up to 80% that is state specific. 

The point I am making is the decision the GP makes is circumstantial and very specific to the fact pattern of their particular deal and to tie back to my first post in this thread, who that decision maker really is is important. 

Hi All,This summer, I would like to buy a duplex to live in and rent half.I subscribed to BiggerPockets so I have access to the tools.I read this:https://www.biggerpockets.com/...Is there any specific advice you would have about buying a duplex in the Atlanta area, or building one if that is possible/feasible?

This process varies by jurisdiction, so you'll need to research the specific procedures in Franklin County. 

I did not specifically state any expected returns.