Written discovery
Document demands seek the contracts, emails, invoices, records and communications that prove the claims and defenses. A demand for a bill of particulars forces the other side to specify the details of what they have alleged. Interrogatories are more limited in New York practice than in federal court, but remain useful for identifying witnesses, accounts and entities.
Depositions
Examinations before trial put a witness under oath with a transcript. They lock in testimony, expose weak claims, and create the record used later on summary judgment. Preparation matters more than cleverness: a witness who answers only the question asked, admits what is true and does not speculate is worth more to a case than any argument counsel makes.
Electronic records
Emails, text messages, accounting software exports, CRM records, security footage and phone records are all fair game when relevant. Preserve them the moment litigation is anticipated. Deleting records after a dispute arises can produce spoliation sanctions far worse than the content ever would have been.
When the other side stonewalls
Good-faith conferral comes first, then a motion to compel, then escalating relief — conditional preclusion, striking a pleading, or costs. Courts in Kings County expect parties to resolve routine disputes without judicial help, and a motion filed without a genuine attempt to confer is likely to be denied on that ground alone.