If you're already doing your taxes yourself, you should be just fine for the first several units. 

@Mark Armstrong, I'll play devil's advocate here, and say that a local agent may suit you fine. 

A 20 year old roof is fine.

Maybe a fine, or a lien, but more likely a requirement to have the work inspected and possibly fixed.

The old rules required 200 payments AND a $$ amount, so didn't apply to most small companies.If they process pmts and don't have your tax info, they can get some hefty fines, for each missing tax id.

This is fine by me, because I will likely make a good profit off the house (bought it for $130k, worth at least $230k now). 

If a licensed agent screws a client, the state can step in with actions ranging from fines, to license suspension and ultimately, license revocation.Do your own research by reading the actual TX law.  

I've done some hand-shake deals which is fine as far as that goes, but the banks really need to have clear title so I would suggest getting a good title company on your side.

Or would pursuing a degree as a CM be fine?

You can then go ahead and do with the money as you please, for example build a new house.It's fine to tell them you don't know how this works and ask them to explain.