I honestly feel as though sometimes I'm not moving quickly or that I can be doing more or taking on more and not realizing I have been able to accomplish task that wouldn't necessarily be deemed as "easy" or "for beginners" (I say this with the upmost humbleness) But I guess that feeling keeps making me push to new levels that have me look back and think wow.I really appreciate your comment and want you to know that it really did have a resounding effect on me 

Clearing the land, leveling the pad for a house,  hauling the rock and building the driveway, trenching for water and power, septic systems,  footers and concrete slabs.

While there are great tenants in all income levels, but in lower income areas, I typically have higher and more frequent turn over.  

I plan on bumping them, definitely not lowering them.Mine by default are automatically high so that I don't get blind sided with a low price for a 3 day weekend or special event.Once I review them I lower them to MY normal high levels.

Like a sweet-a$$ laser level or something.

- Are there State level taxes that need to be paid, if so when and how often?

Geographic/state-level shifts? 

Setting up a MLS listing (although one with certain criteria - requires a concierge level service) is minimal time; but driving to see property (DFW is not a small city) takes time with pre-research, scheduling time with you, post-research, etc.

We have achieved our current level of income very recently, within the last few months - we were making pretty much just enough to pay our debts before that.Now that we have a bit more disposable income, I started looking around at different investment vehicles for retirement about a month ago with the goal of retiring by age 40 (in 12 years).

This is based on my comfort level and previous experience working on properties.