Barrister
Barristers represent litigants as their advocate before the courts of that jurisdiction
Solicitor
A solicitor traditionally deals with any legal matter including conducting proceedings in court.
Commissioner for Oath
Public Officer constituted to serve the public in non-contentious matters usually concerned with estates, deeds, powers-of-attorney, and foreign and international business.
Notary
A notary is performs acts in legal affairs, in particular witnessing signatures on documents.