or software to use?   

But bottom line money is out of your account and into an account you cant access or influence.

I think I would only move 3 of them to software management at first, see how that goes.

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

The younger generation now sees that money can be made remote and by influencing or other things online, but it doesn't make you lendable (and most quit each thing every four months so never get the two years they need as 1099).

Chances are you already know someone within your circle of influence that can help you.

Referencing another recent post, there's not a great software solution that I am aware of for on-boarding a new MTR resident.If you aren't already, I would make sure you disclose to a potential resident any relevant issues that are endemic to a unit as early as possible.

We add the tenant to our management software to streamline communication throughout the lease duration.

Software is a common question on BiggerPockets.

You can keep track of which expense goes to which property through your accounting software (even a spreadsheet would work).