I always give people a full rundown of my process ie application, background, credit check, employer check, and also ask that they bring picture id such as a drivers license, passport, state issued ID card.

I would ask for their passport or naturalization papers. 

To get that started, I  posted nice clear photos of my passport, driver's license, and ss security cards. 

On the day of closing, all signers will need to bring their driver’s license or Passport and a Cashiers Check in the amount you are required to bring to closing.

Just got our new passports.  

Documents such as deeds are kept in our vault with our trust & llc documents, passports, etc.

Obviously I'm not going to post DOBs, Passport photos, SSNs (the pedigree info) but I'd like to feel comfortable posting about my families hike down a certain trail without putting us at risk or being paranoid.

Your Passport. 

Hi Lauren,In addition to the recommendations above, we would typically ask for visa/ passport/stamp showing when they entered into the US.

Need passport with photo and Visa (if expired requires a nonexpired I-94 or Notice of Action Approval I-797 with an I-94, and EAD I-766, when applicable.