Maryland, one of the most densely packed areas of the country, has specific laws when it comes to landlords and tenants, real estate and property. For instance, a landlord in Maryland has to return a renter's security deposit in 45 days after the tenant moves out. Most other states require this to be done in 14 or 30 days. Also, a landlord can charge two months rent as the security deposit for a rental unit. For more Maryland real estate laws, the links below provide dive deeper into real estate, adverse possession and property statutes.