Direcnt Mailing to the Holder of the Trustee's Deed or Trustee's Deed In Trust

[George Rodriguez]

I found a couple of properties that I'm interested in purchasing but one is being held under a Trustee's Deed , the other one in Trustee's Deed in Trust. 

There is one other one being held under an IRA account.

I'm wanting to know if I'd be wasting my time in mailing and spending time to contact the individuals named in the two Trustee's deeds?

And the mailing address for the IRA account is the IRA custodian. Will the owner of the IRA get the mail?