23. Is there a ban on political parties engaging in commercial activities?
Montenegro
"Income from the activities is the income that political entities generate from publishing activities, sales of promotion materials and event organization. Income from property consists of the income that political parties generate from the sale and leasing of property owned by the entity or income from the ownership share in other legal entities and companies."
Source: Article 6, LAW ON FINANCING OF POLITICAL ENTITIES AND ELECTION CAMPAIGNS 2014
Publishing activities, sales of promotional materials and event organization, as well as leasing property are only mentioned as possible surces of this type of income.