Question - how does the in-state dealer who holds an NFA firearm until the buyer is approved get compensated? I am waiting to be approved by ATF for a SBM purchase. I paid the out-of-state seller who transferred the firearm to a near-by SOL dealer, who I understand owns the firearm, per ATF, until the transfer is approved. How does the SOL dealer get compensated, if at all, if and when the transfer is approved? Is there a transfer fee, do I tip him? This is my first purchase with several months to go, I appreciate anyone's help, thanks.