What certification is required to open a cigar humidor and bar?
Decide what size space you'll need and work with a broker to price real estate leases. Develop a business plan and budget -- you'll have to pay careful attention to installing a proper ventilation system.
Speak with an attorney in your area to determine the permits of licenses you'll need in your city or town -- they vary depending on the locality. If you've never operated a humidor you may want to speak to other cigar bar owners in the area to see if this is a business you really want to start.