Info to collect on tenants-in-place

[Sheena Lee]

I’m purchasing a triplex with existing tenants in all 3 units. I will be asking them to complete a form to obtain pertinent information about them. (I am not getting anything but names from the seller---he is very sloppy) 1) What info should I obtain—was planning to get full names, work info, phone (the obvious stuff). 2) In terms of social security numbers, do I have to explain to them why I am asking for this? I want to screen them properly and have this in case of eviction. Is this reasonable? I appreciate any other advice. Thank you!