Unless the court otherwise orders on notice and for good cause shown, claims for foreclosure of mortgages shall not be joined with non-germane claims against the mortgagor or other persons liable on the debt. Only germane counterclaims and cross-claims may be pleaded in foreclosure actions without leave of court. Non-germane claims shall include, but not be limited to, claims on the instrument of obligation evidencing the mortgage debt, assumption agreements and guarantees. A defendant who chooses to contest the validity, priority or amount of any alleged prior encumbrance shall do so by filing a cross-claim against that encumbrancer, if a co-defendant, and the issues raised by the cross-claim shall be determined upon application for surplus money pursuant to R. 4:64-3, unless the court otherwise directs.
Rule 4:64-5.Joinder of claims in foreclosure
Last amended September 1, 1992 · Current through June 18, 2026 · Last verified July 7, 2026
In one sentenceRule 4:64-5 keeps non-germane claims -- like a suit on the underlying note or a guarantee -- out of a foreclosure action absent a court order, and requires a defendant contesting a co-defendant's encumbrance to raise that dispute by cross-claim, resolved through the surplus-money process.
Full Text of Rule 4:64-5
Amendment History
New Jersey publishes each rule’s amendment record in a “History” note beneath the rule. It is reproduced verbatim below; the “R.R.” citations refer to the former Revised Rules numbering the current rules replaced.
Adopted July 14, 1992 to be effective September 1, 1992.
Plain-English Summary
A foreclosure case stays focused on foreclosing. Claims that aren't germane to the foreclosure — suing on the debt instrument itself, an assumption agreement, or a guarantee — can't be joined with it unless the court allows it on notice and for good cause; only germane counterclaims and cross-claims can be pleaded without asking first.
If a defendant wants to fight the validity, priority, or amount of another defendant's claimed prior encumbrance, that fight has to come by cross-claim, and the issues it raises normally get sorted out later, when someone applies for the surplus money left over from the sale.
Frequently Asked Questions
Can a lender's separate claim on the underlying note be joined with a New Jersey foreclosure action?
Not without a court order on notice and for good cause — that kind of non-germane claim generally has to be brought separately.
Source & verification. The rule text and amendment history are reproduced verbatim from the
official New Jersey Rules of Court (N.J. Ct. R. 4:64-5). Prescribed by the Supreme Court of New Jersey (N.J. Const. art. VI, § 2, ¶ 3). The plain-English summary is original and written by us. Last verified July 7, 2026. ·
Official source
Also known as: germane claims in foreclosureforeclosure cross-claim