On August 27, the Maryland State Board of Elections determined that both the Libertarian Party petition and the Green Party petition have enough valid signatures. Both parties had earlier been told they were on the ballot by a lower state court, which had validated some signatures that the Board had rejected. But then the highest state court, the State Court of Appeals, had reversed the lower court.
Fortunately, the court acted quickly, so there was time for both parties to gather additional signatures. The additional signatures now mean the two parties are ballot-qualified, and their nominees for all the offices they nominated for will be on the ballot. Thanks to Bob Johnston for this news.