Step 1: meet with your lawyer and set up a gun trust (either title 1 or title 2 NFA)
2: put all of your firearms on a schedule A or B within the trust.
3: When doc or any agent of the state ask if you own guns, legally and ethically you can say, "My wife and I do not personally own firearms". ( because the property is a trust asset)
The trust idea looks very interesting. I already have one to protect my boys from my money-squandering ex-wife. Do you have evidence, maybe a legal advice website, where I can check this out? If it checks out, I want to get my trust changed pronto.