The binding legal principles established are: (1) When an organ of state contracts in non-compliance with section 217 of the Constitution, a court must declare such conduct constitutionally invalid, with discretion only in determining a just and equitable remedy. (2) No party has a right to benefit from an unlawful contract. (3) Courts will not hear matters where there is no live issue or decide matters of academic interest that will have no practical effect on the parties or public. (4) Under section 16(2)(a) of the Superior Courts Act, appeals may be dismissed where the decision sought will have no practical effect. (5) Save under exceptional circumstances, courts will not entertain appeals on costs alone. (6) Appeal courts will rarely interfere with discretionary costs orders unless the lower court failed to act judicially, applied wrong principles, misdirected itself on facts, or reached an unreasonable decision. (7) Litigants have a duty to make sensible proposals when appeals become moot to avoid wasting judicial resources, and unreasonable rejection of such proposals will affect costs orders.