If not, are there any resources you can suggest for me to get that data from for New York? 

Have it ALL notarized. 

These should all be notarized and that way, he can't file a lien on your property.

If not are you more likely to get a better tenant/longer stay with the 3 than the 6? 

Or with trans and disability movements etc and what not are we now required to just be okay with co-ed bathrooms, our bedroom used as a baby nursery, or our own bathroom structurally customized per temporary lodger's preferences?!

I would be happy to drive through a few streets and let you know if they are nice or not. Are

What @Michael Pearse said -definitely get everything in writing and notarized! 

Lack of notary (Embassies and some consulates have notaries but it varies as to what types of documents they will notarize for you)2.

I highly doubt you’ll get the post office notary or the one at your personal bank to notarize a real estate transaction, let alone any loan documents that may be involved, then you’d still have to deliver them to your title co.

Here is what we had to do:Our lawyer sent us paperwork to fill out, that basically just wanted our information and the company (LLC) information.Once we filled out the paperwork, we had it notarized and sent it back.