Howard Nemerov provides us with some more information on the topic. Based on the information Howard has provided it would seem like they did indeed begin a nuisance abatement process against the landlord that was subleasing the property to a gun show. This could probably raise some preemption issues under Texas law, but the problem is this is far from a clear cut case, as it appears the promoter originally agreed to bar private sales at his shows as a condition of the lease, and the show was cancelled at the request of the landlord.
But also interesting is ATF is possibly looking at prosecuting a private seller in this case. Back to Howard:
The unlicensed seller allegedly set up a table at the gun show with a sign notifying buyers that all sales were cash, and that there would be a surcharge for buyers to go through a background check, apparently through a nearby licensed dealer. The background check never occurred, and the sale was detected. The seller was interviewed and released by BATFE, though Agent Reyes said they may file charges against him, because he had already been notified that all sales must go through a licensed dealer and should have become suspicious over the buyer’s desire to avoid a background check.
This is very clever, because I think this charge is going to stick if they pursue it. The law says it is unlawful to sell a firearm to someone a seller has reasonable cause to believe is prohibited. In this case the “reasonable cause to believe” is the buyer’s wish to evade the background check requirement, a requirement that was technically put in place by a private agreement between the landlord and the promoter. While a private sale isn’t unlawful, the buyer’s desire to skirt the show’s policy could be used to raise the argument that the seller should have known.
The real question in all this, and it this is a detail of law I can’t readily answer, is whether the promoter would have a cause of action against APD for bringing the nuisance abatement process against the landlord over the gun show. The lease agreements complicate this. I suspect the answer is probably no, and finding a new venue is the show’s only path forward at this point. I suspect if the APD had just gone through nuisance abatement with a reluctant landlord, and without a prior agreement about private sales, the landlord or the show could raise a preemption argument in court to fight the abatement process, as that would be a case under Texas preemption law that would amount to enforcement of a law that interfered with the sale and transfer of firearms. The private agreement was in place before law enforcement stepped in, and the show promoter wasn’t living up to it. It’s hard to raise a preemption argument when it’s an agreement between private parties, even if the APD and ATF coaxed the landlord into enforcing the provisions of the lease, and ultimately canceling the show.