You always have the option of going to court. However, the collaborative divorce process is unique in that it requires both parties to sign a contract stating that your collaborative lawyers will not be able to represent you if you decide to go to court at a later date.
The reason that collaborative law works in this way is to provide an incentive for the lawyers involved in your matter to focus on resolving conflict and creating viable solutions for both parties. Collaborative divorce requires a level of amicability between the parties, and willingness to stick through the process of solving difficult family matters.
