It is normal for the freelancers to know that there will be clash. There will be disagreement among the clients. It is normal. However, it should not be too much. Apart from that, as freelancers, you need to make sure that you are making sure that you are settling the issues on time. Doing that will make it easier for the freelancers to retain their clients. There is nothing bad if the clients make the first move to get the disagreement settled.