On May 8 I had a mediation with defendant’s attorney we agreed on a settlement. How long do they have before they must pay me the agreed amount. It’s been over 2 months.
What did you agree?
They must pay you by the time that you agreed in the settlement that they must pay you. If you didn't agree then they must pay within a reasonable time. 2 months might or might not be a reasonable time depending on the circumstances.
Note that a settlement agreement from a mediation is not binding like a court or arbitration award. It is itself a contract and if you want to enforce that contract you have to follow the dispute resolution process in the agreement or, if there aren't any, sue.