Responsibility after property management agreement has ended

[Tony Cook]

Hey all, 

I have a situation where I stopped managing a property (mutual agreement between owner and I) and the new PM company is having tenants contact me 30 days after I stopped managing the property.  I provided all the tenant ledgers, leases, applications, delinquency, etc...so the management company has literally everything they need.  They feel as though anything prior to them taking on the property is my responsibility and I feel that I don't manage and shouldn't be receiving these calls.  

Have any of you had a situation like this?  Do you know if I am required to answer these tenant rent questions at this point?  I want to make sure things are done by the book.

Thanks!!