I have a medical marijuana certificate. can I come there and buy a brownie? thanks, john.

Try the Kiva bars.

MM Certificates are no longer valid. The only valid MMID from the State. You do not "need" either to make a purchase, however possessing the MMID Card will reduce or eliminate the taxes

Yes you can. You don't need a certificate. Just a valid Id will do.

It's recreational, so you don't need that.