A legal document is a document where two or more parties enter into an agreement and is confirmed by the placement of their signatures at the end. Most courts simple require a legible font of a particular size usually at lease 12 point. In simple words, a document that states some contractual relationship or grants some right.
However, the document should also be properly signed, witnessed and filed in making a document legal. The best font for Legal Documents Format that is approved by the court are Arial, Tahoma and Verdana while you can even use1.5- or double-spacingmargin in your legal documents.