It's how I got started, and now I use ML and simulation to find deals (estimates for market value and estimates for rental income), find comparables (sales, rents), create automatic deal reports (for myself, investors, and the banks), and for strategic planning and portfolio optimization.

I flew a Predator simulator (ie video game) when I was at Creech AFB a few years back and let me tell you...it is very much like a video game which creeps me out a little bit.

For an approximation that is simulated by software, there are several websites that can provide you with "comps" - however, I would not bank on their accuracy.Here's a list:http://www.biggerpockets.com/house-value-comps.htmlFor more resources like this, check the links on the left of the forum.

I've got an appointment with my tax advisor to pay last years taxes and run some simulated numbers for 2017 in terms of rental property income.

@Long Dinh   A lender should be able to do a "what-if" simulator on your credit report. 

Many things listed would be considered significant services and would have you losing much of your tax deductions.I know of a couple of STR owners who had to eat a big tax bill due to this and they had to nix those sorts of offerings.That doesn't mean you can't create the wellness space, golf simulator, upscale game room, etc to enhance the space.

But just like people simulation stock trade, would be cool to hear what people think! 

No matter how much time and money was spent on renovation, trying to simulate heavy use of the mechanical systems as a result of the occupancy by a family was different.

Watch the auctions for a month or two (do some simulations for practice) before you actually bid.Otherwise you will likely run home with your tail between your legs.

Here are the links to the calculators I utilized to simulate these hypothetical scenarios.