The debtor may set up against the assignee, as he could have done against the assignor, any defenses which were available to him upon his becoming aware of the assignment.
Civil Code
2015 English source edition · Current applicability not established.
This is the 2015 English-language edition attributed in its front matter to the Ministry of Justice. Eri Atlas has not independently verified the translation, later changes, or whether the text is currently in force. Nine passages are incomplete in the available scan and are identified where they occur.
Article 1570
Valid Defenses · Preserved transcription; page attribution imported from the source collection. Verify against the original.
Where he had a claim against the assignor which was not yet exigible at the time, he may invoke a set-off, provided his claim does not fall due later than the assigned claim does.