As between the parties to this bond and mortgage it is clear that the mortgagee could not enforce the payment upon it of any greater sum than the $2,000 loaned at the time of the delivery of the bond and mortgage, and the interest thereon, until it had advanced the remaining sum of $2,000. It is also clear that every assignee of said bond and mortgage took it subject to the equities existing between the original parties. It was expressly stipulated in this action that the mortgagee never did advance upon the mortgage more than the sum of $2,000. The plaintiff claims the right to ^foreclose the mortgage as assignee; and, in addition to the rule of law adverted to, that he took the assignment subject to the equities existing between the original parties, it appears by the stipulation referred to, that he took the assignment of the bond and mortgage with full knowledge that only $2,000 had been loaned upon them, and that he only paid the mortgagee that sum upon the assignment. If this were the whole of the case, the plaintiff had no right to foreclose the mortgage for more than the $2,000 advanced upon it.
But the judge by whom the cause was tried has found as a fact, that at the date of the mortgage the mortgagor, in addition to receiving the sum of $2,000 upon it, also received from the mortgagee its agreement to advance upon the bond and mortgage the further sum of $2,000, when the house then in process of erection upon the mortgaged premises should be completed to the satisfaction of the mortgagee. Assuming this finding to be correct, it is difficult to see that i.t can have any force when it is conceded that, even if the contingency had happened upon which the further advance was to be made, no such advance had in fact been made. The mortgagee could in no event recover more or foreclose the mortgage for a greater sum than was actually advanced upon it. But the defendant has excepted to the finding of fact, and a *330reference to the instrument signed by the mortgagee (which contains the whole of the evidence upon this subject) shows that the exception is well taken. That instrument did not bind the mortgagee to advance a dollar beyond the sum of $2,000 advanced at its date. It left it optional with the mortgagee to make further advances or not, as he might choose, and merely provided that the remaining sum of $2,000 should not bear interest until it should be advanced by the mortgagee.
But the plaintiff insists that the mortgagor subsequently conveyed the mortgaged premisés to Bulkley, subject to this mortgage of $4,000, whjch Bulkley assumed to pay as a part of the consideration of purchase, and that as between the mortgagors and Bulkley $4,000 was deducted from the purchase money, and that Bulkley sold the premises to one Coyle under similar circumstances and a similar agreement as between them, and that Coyle sold the premises to the defendant Auld under similar circumstances and a similar agreement as between them, and as the plaintiff had paid the mortgagee $2,000 for the assignment of the bond and mortgage, and had made an agreement with the mortgagors to credit them the sum of $2,000 in addition upon their prior indebtedness to him, and had given such credit, that these facts give him the right-to'collect the sum of $4,000'upon the bond,- or to foreclose the mortgage for that sum, with interest from the date of the mortgage. This claim has no foundation in law, if the facts stated are conceded. The agreement of plaintiff to credit the mortgagors $2,000 upon their precedent indebtedness to him, and the giving of such credit, did not operate as an assignment of any cause of action the mortgagors may have had against any of the purchasers of the mortgaged premises upon their respective agreements to pay $4,000 upon the bond and mortgage. The plaintiff still stood as the naked assignee of the bond and mortgage, and was only entitled as such. *331to recover the actual sum due upon them. The mortgagors assigned nothing to the plaintiff, and the facts stated did not operate as an assignment of anything to him.
But the defendant Auld having excepted to the finding of fact that the successive purchasers of the mortgaged premises made agreements with their immediate vendors to pay the sum of $4,000 upon the mortgage—the deeds of these several purchasers contain the only evidence of these agreements on this subject, and they show that the extent of their several agreements was to pay the amount actually due upon this mortgage. Bulkley assumed and covenanted to pay the mortgage, described as amounting to $4,000, the sum due and to grow due thereon. The agreements of the other vendors were similar to Bulkley’s. This exception is well taken. The proof does not warrant the finding. The cause of action which the several vendors of the mortgaged premises may have against the vendees upon their agreements to pay the consideration money agreed to be paid, can only be enforced by the several vendors or some assignee, and the equitable lien of these vendors for unpaid purchase money can only be enforced by the vendors of some assignee of the right of action for the unpaid purchase money. It is questionable whether such assignee can enforce the lien. (1 Lead. C. in Eq., 361, 369.)
The plaintiff should have accepted the sum of $2,000 and interest tendered him by the defendant Auld. The judgment of special term should be reversed and a new trial ordered, unless the plaintiff shall elect to modify the judgment, so that it shall be for the recovery of the sum of $2,000 and interest, and that the defendant Auld recover his costs of the action.
Ingraham, P. J., concurred.