I've been talking about legal cannabis here for years as an unstoppable industry, with my broad investment motto being: when laws pass, stocks soar.

Now it looks like the folks at BofA Securities, a division of Bank of America Corp. (NYSE:BAC), are finally catching on, as they've started to cover the industry in depth. Let me be the first to say: Welcome!

It also looks like in their initial coverage, they're predicting that as the U.S. steps closer to federal legalization, we're going to see more Canada-based firms trying to snatch up American ones, while the price is still cheaper than what it would be in a post-federal legalization world.