A great way to get started would be with a 2-4 unit to minimize the risk for a first time investor.   

Agreeing with @Jordan Moorhead , there are easily 15 duplexes for sale in that area, 5 of which are nice enough to require minimal touchups.

I plan on using a property management company, so my time would be minimal. 

You will get minimal, if any, economies of scale and operational efficiencies at the unit size you're thinking about.

If you're just looking to deploy capital with minimal cash on cash return and take advantage of leveraged gain in real estate over time, there are a lot of markets out there where it is easier to do this than DFW.

I've gotten 8 pre approvals in my life and the effect on my credit was pretty minimal. 

Just like any investment.... do your research and minimize your risk.

Each LLC has costs associated with it, so unless its necessary, my preference is to minimize expenditure.

Also think of your investment strategy, NPN's (1st or 2nd) take longer with inherent risks involved,  which can be minimized partnering with experience note investor.   

Having a narrow focus minimizes risk as each strategy has it's own.