the amount of the guarantee was left blank at the time of its delivery, the bank subsequently filled the blank space by inserting the amount of $1,000,000. After a series of loans had been made to Rocke, the bank agreed to raise the line of credit to a higher amount. In January, 1971, after more than $900,000 had been advanced, Rocke defaulted on its obligations and the bank demanded payment from the Gazzas pursuant to their guarantee. In April, 1971, Joseph Gazza executed a $365,000 mortgage on certain real property as security for the guarantee, but in the mortgage instrument the parties explicity reserved all rights or defenses relating to the guarantee. The Gazzas commenced the first of these actions in May, 1973, seeking a declaratory judgment annulling the guarantee and che mortgage on the ground,
inter alia, that the allegedly fraudulent completion of the guarantee by the bank discharged their liability. In its answer, the bank asserted the defense that the Gazzas “authorized, consented to and ratified” the insertion of the $1,000,000 ceiling in the guarantee, but no counterclaim for recovery under the guarantee was interposed. In March, 1977, the bank finally commenced a separate action on the guarantee, but by then more than six years had elapsed since the default by Rocke and the Gazzas pleaded the Statute of Limitations. In August, 1980, the bank moved for an order (1) consolidating the two actions on the ground that they arose out of the same transactions and involved common questions of law and fact (CPLR 602, subd [a]), and (2) granting it summary judgment in both actions. Annexed to the bank’s moving papers was a portion of the deposition of a former bank officer who testified that the guarantee had been left blank to accommodate Rocke’s efforts to increase its line of credit. In response, Joseph Gazza submitted an affidavit claiming that he had intended to guarantee Rocke’s debts only up to $500,000 and denying that he ever authorized the bank to complete the guarantee with another sum. By cross motion, the Gazzas also sought summary judgment in both actions and contended that the action to enforce the guarantee was time barred. Special Term granted the bank’s request to consolidate but denied each party’s motion for summary judgment. The court rationalized its consolidation determination by treating the action to enforce the guarantee as a counterclaim in the declaratory judgment action, thereby tolling the Statute of Limitations pursuant to CPLR 203 (subds [c], [el). We agree with Special Term that summary judgment for either side is inappropriate to the declaratory judgment action and to the bank’s motion on its own action as well. The fact that the amount of the guarantee was incomplete at its execution does not automatically render the instrument void (see
Deering Milliken v Georgette Jrs., 17 AD2d 405 ), for if the subsequent completion was authorized, the guarantee could be enforced as completed (see Uniform Commercial Code, § 3-115, subd [1];
First Nat. City Bank v Cooper, 50 AD2d 518 ). If the completion was fraudulent, however, liability under the instrument would be discharged (see Uniform Commercial Code, § 3-407, subd [2];
New Britain Nat. Bank v Baugh, 31 AD2d 898 ). On this record, the obscurity of the circumstances surrounding the completion and the factual dispute over the authority for completion suffice to mandate a trial. The remaining issue concerns the correctness of Special Term’s order insofar as it denied the Gazzas’ cross motion for summary judgment dismissing the action on the guarantee and granted consolidation of both actions. Absent the tolling provisions of CPLR 203 (subds [c], [e]) which, for Statute of Limitations purposes, relate the time of service of counterclaims and amended answers back to the date of service of the original summons, the bank’s action would be untimely since it was not instituted within six years after Rocke’s default (see CPLR 213, subd
2\ American Trading Co. vFish, 42 NY2d 20 ;
General Phoenix Corp. v Cabot, 300 NY 87 ;
Shayne v Reynolds, 225 App Div 70 ). The bank contends, however, that the Gazzas’ execution of the mortgage in April, 1971