-If licensing is required, will a regular RE agent salesperson license suffice or does one obtain a Brokers license (lengthy application period)?

At the moment, I have not considered REI as a complete gateway from my regular occupation, as I am just as fascinated with Oil and Gas Industry, and things that are happening around us with technological advances and new explorations.

It can also consult, manage, service notes, lend, encumber, contract, whatever I want within reason related to RE that owns nothing and whose revenue generates regular active income. 

Get to know people by attending your local real estate club as a regular.

Measure the performance of your campaign regularly and finetune whenever required.4.

As what I have read, and don't hold me to it, your regular gross income * 40% - recurring payment (car, utility, rent, average of sum of all credit cards over the last few months) = your mortgage.

I am searching zillow pretty regularly to keep an eye on the market but most of deals are coming in under 5% cap.

Some are just regular people, but some are clearly investors. 

Regular home insurance in Corpus is higher than nationwide; figure on $1/sq foot/year. 

We are replacing the gypsum board and using a fairly expensive system to replace the moisture barrier and insulation.