California "Businesses that take compliance seriously should follow two main paths to mitigate the harms presented by illicit businesses in California. First, such businesses should support efforts to crack down on operations that don’t meet California’s standards. The fact is that non-compliant businesses hurt the entire cannabis industry. Rather than oppose enforcement against all cannabis businesses, the industry should support government efforts to close unlicensed businesses and ensure licensed businesses meet their legal obligations.
Second, licensed businesses should go out of their way to demonstrate their compliance to the public and government actors. Businesses that can show they are abiding by state law will likely be left alone by the Federal government. Those who are operating in violation will not fare as well. Moreover, as businesses focused on compliance proliferate, government actors will be less able to use bad actors’ actions as a pretext for broader crackdowns on the cannabis industry."
If the Feds leave California alone, I'm sure they won't interfere with Canada in any way.
https://www.newcannabisventures.com/compliance-will-be-critical-as-california-legalizes-cannabis/