The affidavit of service is included in the fees when a legal document is served. It is usually signed by a commissioner of oaths. Based on the originating province of the document and the requirements of the court, the document may be required to be notarized by a lawyer.
Here the process servers must provide an affidavit of service as evidence that a legal document was served. This sworn statement must be provided by a process server and will explain to a court how, when, and by whom the legal document was served and where the service took place.