Question: how to check if someone is paypal verified?
Answer: First you need somebody's email address... ( Let's use potato @ potato.com as an example. )
Go to PayPal, and log in.
Copy and paste this url: ... 
Replace "username @ http://emailhost.com " with the person's email address. ... 
The resulting page will show whether or not that email is linked to a verified PayPal account.