Paying a 12x on net revenue probably isn’t feasible for an established stable business. If one paid this for the business, you would theoretically operate it for 12 years without making anything or having any extra to “build” the business up. Don’t pay for what you think you can grow the business to, pay what it’s truly worth today. Sign the NDA, time for dd.
It’s hard to climb out of a bucket of crabs lol