Some lawyers who specialize in marijuana deals and marijuana clients have worried about possible legal ramifications with their respective State Bar or otherwise. Federal law holds that marijuana is illegal regardless of state laws, and attorneys cannot help their clients participate in illegal activities. There has not been any case law known to this author giving protection to attorneys who work with marijuana businesses.
Eureka! The Colorado Supreme Court just approved a rule that eliminates the threat of possible ethics violations for attorneys who counsel marijuana businesses. That is good for Colorado sand Washington attorneys and also attorneys elsewhere who work with medical marijuana businesses that are legal at the state level.
Now in Colorado and Washington lawyers may assist clients in conduct which lawyers reasonably believe is permitted by state or local provisions.
Prohibition IS ending.