A provision in a building contract, that final payment shall be made upon satisfactory proof that all liens against the building have been discharged, makes payment of such liens a condition precedent to the recovery of final payment.1 A contract imposing payment of liens as a condition precedent, is substantially performed, however, if the time within which liens upon the property can be filed has lapsed, and no liens have been filed.2 It has been held that if the lien is liquidated the contractor may enforce payment of the difference between the amount due him and the amount of such lien, leaving the owner to pay such lien.8

Jo., 102 la. 613; 71 N. W. 566; Chippewa Lumber Co. v. Ins. Co., 80 Mich. 116; 44 N. W. 1055; Gasser v. Sun Fire Office, 42 Minn. 315; 44 N. W. 252; Wolff v. Ins. Co., 50 N. J. L. 453; 14 Atl. 561; Palatine Ins. Co. v. Morton-Scott-Robertson Co., 106 Tenn. 558; 61 S. W. 787; Chapman v. Ins. Co., 89 Wis. 572; 28 L. R. A. 405; 62 N. W. 422.

4 Supreme Council, etc., v. For-singer, 125 Ind. 52; 21 Am. St. Rep. 196; 9 L. R. A. 501; 25 N. E. 129; Supreme Council, etc., v. Garrigus, 104 Ind. 133; 54 Am. Rep. 298; 3 N. E. 818; Bauer v. Samson Lodge, 102 Ind. 262; 1 N. E. 571; Jeane v. Grand Lodge, 86 Me. 434; 30 Atl. 70; Cotter v. Grand Lodge, 23 Mont. 82; 57 Pac. 650; Levy v. Iron Hall, 67 N. H. 593; 38 Atl. 18; Myers v. Jenkins, 63 O. S. 101; 81 Am. St. Rep. 613; 57 N. E. 1089; Schryver v. Columbia Lodge, 3 Ohio C. C. 422. 1 Erickson v. Brandt, 53 Minn. 10; 55 N. W. 62; Franklin v. Schultz, 23 Mont. 165; 57 Pac. 1037.

2 Monmouth Park Assoc, v. Wallis Iron Works, 55 N. J. L. 132; 39 Am. St. Rep. 626; 19 L. R. A. 456; 26 Atl. 140; Mills v. Ry., 90 Va. 523; 19 S. E. 171; and see s. c, 91 Va. 613; 22 S. E. 556.

3 Huckestein v. Kelly, etc., Co., 152 Pa. St. 631; 25 Atl. 747. But in Negley v. Jeffers, 28 O. S. 90, a contract by a vendor to remove liens on realty before the last payment from the vendee should be due is a condition precedent and a waiver of such condition and agreement that the amount of such liens should be deducted from the purchase price and the balance paid was held to be a valuable consideration.