I use the rentalutions software.

And then there’s REI software like realeflow and other sites similar that can basically do all of the above on their site.

Does anyone use any software or have any sound method for quickly aggregating / tracking opportunities, organizing analysis and sharing analysis with investors (in my case family members)? 

I am a software engineer at Amazon looking to diversify some of my investments into real estate.

As a software developer myself, I know that even great devs may not know a thing about those crucial elements.  

It isn't at all crazy to suggest that your hourly wage might be on par with the computer scientist UC Berkeley software engineer client of yours, except of course that you aren't a zillion dollars in student loan debt. 

It’s offered through Entrata but you should be able to perform screenings independently without purchasing the software, which can be costly unless you’re managing quite a few properties.They even generate approval or fail letters for you that make it fairly clean, cut and dry.

what software did you use for your numbers?

I can easily share it with my wife and she sees all updates I make to it.There is no dedicated software that I know of to track a custom portfolio so that's why I opted for Google Sheets instead. 

Own your own software company.