Ferrets are legal to own in Texas
No, it is not legal to own a possum as a pet in Texas.
You can't.
Yes, it is legal to own a tank in Texas as long as it is demilitarized and does not have operational weapons.
Yes
You need a lawyer for a current, legal and correct answer.
no
It is possible for a legal resident alien to own a firearm in the United States.
No, it is not legal to own a wolf in Texas. (See related link for more information.)
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.