If a property owner asks me for a tenant reference, what can i say legally?

[Rob Heim]

One of my old tenants is moving into a new apartment and the property owner is asking me about him.  I dont know what I can leagally say?

Thank you,

Rob

[Rob Heim]

Quote from @Tim Bratz:

I am not aware of any privacy laws regarding what can and cannot be shared, but the best advice I can suggest is to only provide information that can be supported with written evidence. No feelings, thoughts, etc.

 Thank you Tim!