Laws can be hard to interpret and vary from state to state. I've seen written laws that needed a lawyer to figure out.
Here is an example of a goofy law in my state: A convicted felon may never be in possession of a firearm. Also in my state, theses weapons are not considered firearms (from Texas Penal Code 46):
(A) an antique or curio firearm manufactured before 1899; or
(B) a replica of an antique or curio firearm manufactured before 1899, but only if the replica does not use rim fire or center fire ammunition.
In others words, there are countless weapons made before 1899 and after 1899 that meet this criteria. A felon may strap a pair of black powder 1851 Colt Navy pistols and be legal walking on the sidewalk of Dallas, Texas.
Then, there are these provisions for felons owning/possessing a firearm (again from Texas Penal Code 46):
Sec. 46.02. UNLAWFUL CARRYING WEAPONS. (a) A person commits an offense if the person:
(1) intentionally, knowingly, or recklessly carries on or about his or her person a handgun;
(2) at the time of the offense:
(A) is younger than 21 years of age; or
(B) has been convicted of an offense under Section
22.01(a)(1),
22.05,
22.07, or
42.01(a)(7) or (8) committed in the five-year period preceding the date the instant offense was committed; and
(3) is not:
(A) on the person's own premises or premises under the person's control; or
(B) inside of or directly en route to a motor vehicle or watercraft that is owned by the person or under the person's control.
So, if I'm reading this right, a felon may possess a firearm after a five-year period of which I am unsure when that period begins or ends. It also says that a felon may possess a firearm as long as it is kept on the person's own premises or is in their motor vehicle or directly in route to the vehicle.
All confusing, and it is apples-to-oranges when compared to iv**y. But if you are in doubt about any state or federal laws are concerning the possession or transfer of iv**y, you may ought to consult an attorney.