Manage rental income and expenses using tools like Google Calendar and property management software.

It sounds like you've been working hard on that first deal.  

I would like to know which physical areas I should focus on. 

The question you should be asking yourself is what kind of investments do you like?

I house hacked before it was called house hacking:) Screened my roommates like any other applicants.

Dang I like that.  

I would like to know what others here in the DFW area are currently paying for exterior and interior concrete piers.

Guys like @Russell Brazil can advise.

I'm going to reach out to the broker but don't want to sound too much like the noob I am so I'm curious that since these are being sold together, will I have to look at two separate loans/closing cost or is there a way to do a package loan?

What do you like about your niche of real estate?