Yes, it is. since like MOST US states, Texas has no requirement for, and no provision for registering firearms.
Ferrets are legal to own in Texas
You can't.
Yes
You need a lawyer for a current, legal and correct answer.
no
No, it is not legal to own a wolf in Texas. (See related link for more information.)
It is possible for a legal resident alien to own a firearm in the United States.
Yes, as long as he is not living with the wife. One person's criminal record has no legal consequences for that of another person not residing with them, regardless of their relationship to that person. Since it is illegal in Texas for a convicted felon to be in close proximity to a firearm, the husband would be in violation of the law for residing in a home that contained firearms.
No you do not have to be a gun expert to own a gun. As long as you are of legal age to own a firearm and you do not have any felony offenses on your record, you can own a gun.
Technically, a trust can "own" any item that you put in it. But to make the answer a little more specific, a firearms trust can own any legal firearm. All you have to do is list it on the Schedule A.
I hope not. ADDED: It IS LEGAL FOR YOU to be able to own a firearm, HOWEVER you had better keep it somewhere else. It is not lawful for a convicted felon to be in the same house with it. Court decisions have ruled that such a situation places the convicted felon in what is known as "concurrent possession" of the firearm and they can be charged with "Unlawful Possession of a Firearm."
You need to talk to a lawyer for a current, correct and legal answer.