Legality G Common Law Contracts B H void by A E statute Contracts C in restraint F D of trade A. Contracts Illegal at Common Law B. Illegal as formed or Illegal as performed C. Illegal on public policy grounds D.Contracts prejudicial to the status of marriage E. Contracts Void under Common Law F. Contracts to ouster the jurisdiction of the courts G.Statute H. Express Prohibition/Implied Prohibition