Vital records, like birth, death, marriage, divorce, etc., records are not available in NYS unless your name is on the document or you have a court order.
VitalChek can order vital records online from some states/counties, there is usually a fee.
After you have tried all the other available people finding tools, the Research Center can search Accurint for you, to help you find a contact or background a person for reporting. Make an appointment with one of us here, or email firstname.lastname@example.org
Do a Google and Google News search: for a person: “firstname * lastname” (this will search for middle or maiden names or initials)
A PIPL search [see people finding databases tab] will give you links to a person's social profiles on LI, FB, IN & TW. Use multiple points of info to triangulate and see if you have the correct individual. Check the place of residence, hometown, relatives, friends, employer. Photos & posts can also give you clues.
Here are some other social search sources:
These apps will help you find phones and emails:
Use the Guide Nonprofit Organizations - research sources for reporters to identify nonprofits people are associated with.
In other counties across the country search property records with the county name or tax assessor's office.