CPLR § 503 Venue based on residence
CPLR § 510 Grounds for change of place of trial
CPLR R. 511 Change of place of trial
HVT, Inc. v Safeco Ins. Co. of Am., 2010 NY Slip Op 06571 (App. Div., 2nd 2010)
On this appeal, we must determine whether an affidavit served by a plaintiff in accordance with CPLR 511(b) may be scrutinized to ensure that it does, in fact, "show[ ] either that the county specified by the defendant is not proper or that the county designated by him is proper," or if the mere service of such an affidavit, irrespective of its content, satisfies the plaintiff's burden. We hold that, while the sufficiency of the factual averments set forth in such affidavits may not be weighed, the contents of the affidavits may nonetheless be considered to confirm that the averments therein do indeed "show[ ] either that the county specified by the defendant is not proper or that the county designated by [the plaintiff] is proper" as required by the statute (CPLR 511[b]).
It's a long decision, but it's worth reading. I'll add more later.