Choose two requirements needed for a person who is having improvements made on his property, before making the final payment?
1) The contractor should suggest the materialmen to take an oath of having used genuine products in their work.
2) The contractor should sign an affidavit that all materialmen and subcontractors have been paid.
3) The contractor should supply the person with a release of lien signed by the subcontractors and materialmen.
4) The contractor should hold a lien attached to the property for the cost of the improvement.