>>To legally keep an American alligator in Texas, and it's the only way you should otherwise they will confiscate it and/or fine you, you need a permit. TP& W issues the permits.
Correct. If you buy one from out of state without a Texas permit, you can get hit with a Federal Lacey Act violation, too. BIG PROBLEM THEN!
>>The permits come in several forms. Farming, zoological, and educational.
Except for SEZ permit holders (scientific, educational, and zoological - VERY hard for a private citizen to get!), only farmers can keep them. If you want want, build your cage according to spec, get a farmer's permit ($240 per year), and get your gator(s). Harris county may have more regs, but that has nothing to do with state regs (or TPWD regs).
> All of which can be tricky to acquire.
A farmer's permit (many Texas "farmers" only have one or two alligators and never plan to harvest them) isn't hard or tricky to get. You just pay the money and have approved facilities. Facilities aren't THAT unreasonable, but they aren't geared towards keeping a single gator as a "pet." I'll admit that.
> They also require annual or biannual written reports to the state.
Quarterly, but it is a simple form. Actually, there is more than one form, but most are for things like sales, trades, deathes, etc.
KJ