This section is from the book "American Law Of Real Estate Agency", by William Slee Walker. Also available from Amazon: American law of real estate agency.
The principal agreed to pay the broker a commission for selling land when the vendees paid a certain sum and gave their note and mortgage for the balance, the vendees executed their note but never paid the money; the broker was not entitled to commissions. McPhail v. Buell, 87 Cal. 115, 25 P. 266; Ormsby v. Graham, 123 Iowa, 22, 98 N. W. 724; Hartman v. Selling, 192 P. 408, - Or. Sup. - . See also Secs. 449, 456, 458.
 
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