Hubly Product Requests

Allow next workflow (NWF) to be one of many and contingent upon which of 2 tasks is completed. For example; if prospect signs agreement, then NWF=Onboard Client, if the prospect doesn't sign the agreement, then NWF=move to lost.

Sometimes I accidentally create duplicated contacts! Is there a way that we can have some kind of tracker that flags when a duplicate email, phone number or name is created?