He probably knew that she would not want to leave voluntarily, so, he hires a lawyer to evict her.

Give them the option of moving out voluntarily or being forcibly evicted.

After all, a low pot is coming from Canada who has the best manufacturing and growers and this would screw Mexico's drug cartels (if those walls ever get built).Issues that operators face Politics aforementionedDifficult to get lending - some banks have an outright banIt's the wild wild west - similar to the Crowdfunding sites where companies are jockeying for dominance to be the eBay or Amazon of the spaceWays to Invest In Cannabis Repurposed industrial space to store inventory as well as growing CannabisBuy the ETF like MJGive an unsecured loan or invest in a Fund that funds operatorsInvest in a syndication/private placement

You'll have to honor the existing lease agreement, unless the tenants want to voluntarily leave or you opt to offer them cash for keys to get them to move out once you take over ownership. 

Pay an early termination fee with 30 days notice.If they voluntarily choose option #2 then there's no risk of them complaining to anyone, particularly the legal system.

The fact that he's voluntarily honest reduces the risk.

Just thought I'd sweeten the pot.

I've never been a fan of potted plants.

Their defense: A condo/homeowner association is a private, contractual business relationship in which residents voluntarily sign away even Constitutional rights when they agree to be bound by the rules set by a community association board. 

You can save money by mutually agreeing with the tenant to end the tenancy and their voluntarily moving out.