Mediation
You can also “talk” on your own! A seasoned mediator initially separates the "squabblers" and brings them together again in a controlled manner.
The mediator assumes a mandate, if both parties agree. Once he has understood the wishes of both parties and their concerns (separate discussions), he brings them together again under his control. Thereby he initially takes on a "translator role”. Thus, information begins to flow again, which was previously not possible due to emotions, accusations, attacks and defence. Now he can allow the parties to speak to each other directly again a little at a time and lead them through a problem solving process.
The mediator can incorporate his own ideas, however, leaving the decision to the various parties. That distinguishes him from an arbitrator or a judge of the court who make a decision. A good mediator can, however, suggest his own solutions, which satisfy the concerns of both sides.
Mediation can be worthwhile before going to court (family, neighbourhood, ex-partner, business partner). You thereby avoid legal costs and the risk of litigation. Furthermore some attorneys are interested and trained in this. If you cannot agree with your opponent on mediation yourself, you can instruct me to persuade them. I can accept a mediation mandate, if everyone demonstrates a sincere interest in this. The costs are shared.
A further advantage: After a successful mediation, the relationship with the "opponent" often improves. This is especially useful in supplier-customer relationships, among employees, ex-partners, etc.