Hi there,
if you've had any prior offenses on your record then yes you have to disclose. Unless your BRN asks you to disclose on your application I wouldn't. I would also consider consulting with a lawyer - you might be able to avoid fees through a free consultation.
I've read some nurses with previous records prior to licensure had to be put on probation at the very least, but it is a case by case basis. I'm in California and they're pretty punitive and strict with their decisions.