- What systems/software do you recommend to use to determine the markets to invest/buy into?

We have a unified inbox so call channels texts and calls go into our software, and yes to them.

I have no doubt @Carlo D. will be able to open the bank account he desires but when it comes so submitting loan applications the lender's underwriting team not only has to underwrite the property and review the borrowers PFS and personal information but also has to make sense of the ownership structure and who will be required to guarantee the loan.

I'm trying to understand the reasons....pros/cons.... to requiring occupants 19+ years or older to fill out application?

That's like a company that does software development giving employees a bonus for referring other good programmers automatically makes the company a "scam". 

I'd bet any local University has classes applicable to commercial RE investing and management, audit the course instead of attending for a grade, much cheaper

However* for Texas applicants specifically its required that the applicants address matches the address of the property they have listed on the application."

It looks convenient where I can fill out form online to complete the application. 

Been trying multiple sites or softwares like dealio, crexi, zillow  in finding the best deals.

It's built on top of G Suite so if you are using that it is really nice.ProsperWorkshttps://gsuite.google.com/marketplace/app/prosperw...G Suite in general has released a new tool called App Maker that allows you to build some really powerful applications on top of it.