A broker employed to find a purchaser who would pay the purchase price, and in addition assume such assessments as might be levied against the property, did not comply with the terms given him so as to be entitled to the commission, where, in his agreement with the proposed purchaser, it was provided that the purchaser might assume the assessments, and if he did deduct them from the price. Kane v. Dawson, 52 Wash. 411, 100 P. 837. See references under Sec. 307.