Maryland doesn’t allow concealed carry, in case you were wondering. It’s not a shall-issue state but a may-issue state:
Maryland law contains provisions for citizens to apply for a concealed carry permit under a limited set of circumstances. These include several occupational reasons such as business owners or their employee who makes large cash deposits, retired police officers, doctors, pharmacists, private detectives, security guards, and railroad police. Correctional officers (who do not require a permit while on duty but cannot carry off duty) may obtain a permit if they can provide legally documented evidence of threats on their life. Similarly, private citizens can obtain a permit if they provide evidence of 3 death threats that have been documented by the police.