Thanks for the reply.
I already have my streets broken up into classes and can't use the SQL Query tool to write a statement to do this.
However,
I wrote a function in the Expressions dialog box.
Function FindLabel ([ST_Label], [Owner])
If ([OWNER] <> Multi) then
FindLabel = [ST_LABEL]
End If
End Function
This seemed to do what I want.
Thanks for the reply!