Canadians who smoke marijuana legally, or work or invest in the industry, will be barred from the U.S.: Customs and Border Protection official

Canadians are dealing with a potential lifetime ban from entering the United States for even admitting that they have used cannabis in the past, but what's unclear is exactly where the line for investing or supporting a cannabis company or stock is. Canadians can smoke cannabis legally in either their home country or even legally in one of the many available legal states in the U.S. but the admission alone is enough to get them banned at the border. But it is extremely unclear about how far that goes. Can you admit to investing in a stock involving a cannabis company? While the Prime Minister of Canada hopes these issues can be resolved he says he has no right to tell other countries who they should let into their own countries, though he hopes travel between the two countries is not disrupted. 

Len Saunders, an immigration lawyer in the state of Washington who represents people dealing with cannabis-related issues, said he did not think that an average investor in cannabis stock would be barred from the U.S. Only people “more actively involved in managing their assets,” such as Znaimer, or employees of cannabis-linked venture capital firms, are likely to face such a proscription.