Not a landlord, but as a tenant, I would just be concerned that you directly are getting that information (social security, etc). Try explaining to them what TransUnion is. Maybe they don't know.
To be honest, I don't know how much info transunion asks. I do not get to see the info they provided. I only see any criminal convictions, collections, evictions, number of accounts in good standing, etc. I don't see their salary. But transunion uses that info to make a guess about their ability to pay. The first couple did not hesitate to fill the application. The girl was too young and her dad filled out as a cosigner. Her boyfriend had bad credit for late child support. I didn't have a problem with them. She was recommended because of her dad's high income and he was recommended with a warning.
I then had another applicant recently that was offended about the amount of info asked by transunion. I did not have a good feeling about her anyway. She asked if she could pay every two weeks. She didn't want to have the money in her bank account that long. There were other statements that made me a little anxious. I passed on her.
These latest applicant are a pair of cousins. They are both electricians. They seem to be OK. My son's mother met them and she felt OK as well. Since we are going to be sharing a house I don't know any other way to check their criminal background. The good thing about going through transunion is that I don't see any of the sensitive info. I told them that I can show them a previous report. that way they can see that no info is filtered down to me. transunion checks their identity, credit and criminal background.
I work 24 hour shifts and they will be in the lower level while my son and his mom will be upstairs. I don't want some shady character to move and be a problem.