A real estate broker is not entitled to commissions for the sale of land unless he procures a purchaser who is able, ready and willing to complete a purchase on terms named, or which are, in the absence of an express agreement as to terms, satisfactory and agreeable to the owner. Fairchild v. Cunningham, 84 Minn. 521, 88 N. W. 15; Montgomery v. Knickerbocker, 50 1ST. Y. S. 128, 27 N. Y. App. D. 117; Handley v. Shaffer, 59 S. 286, 177 Ala. 636; Alexander v. Smith, 61 S. 68, 180 Ala. 541.