We use Propstream but I am looking for some added info that Propstream does not easily provide  @Sean OToole is the owner and he has built an incredible platform..

You can easily do this for free.

You could put in a range of numbers for purchase price and closing costs, renovation expenses, and expected returns and you could very quickly get a range of projected return on investments (although an excel spreadsheet could easily do this as well), but I'm sure as technology develops we will see even more sophistication in AI's ability to assist in deal analyzing.

Quote from @Caliana Johnstone: Realized leasing to a new tenant can take 5-10 hours easily.

You can EASILY pass several million to your heirs tax free and avoid at least a $1M in taxes if you spend anywhere near 20 years investing in real estate. 

I like to grab my planner and thumb threw it easily. 

I can easily access them from my cell phone, just not my computer.  

You could easily be $100k in for water/gas/power/sewer if you’re talking 4+ lots. 

I have had a lot of success purchasing 5 bedrooms houses next to larger universities and have been able to easily find tenants.

Raleigh only allows 2 STR listings per house, but you could easily rent the others as mid-term through airbnb's platform (I do this).