Counter them or negotiate with the leader.
Village and town riots may occur if the people hate you and have to pay high tax rates.Appoint a chancellor who sends gifts to lords, settlements or ladies and messengers to lords.Appoint a constable who recruits and trains troops and provides information about garrisons and troops of lords.Let your companions pick items from the chamberlain item pool (autoloot).In addition he will take care of paying wages and collecting income as well as giving you the ability to secure your money.
This gives you a possibility to influence center relation and prosperity.
