Who is better qualified to write a description without benefit of a survey, than a surveyor. As Deral points out, a new r/w or easement that goes along a deed line can be better clarified with a map that accompanies the dedication/deed. Often a suvey is not necessary. But if a surveyor prepared it for legal purposes, then they should seal it.
Is the tie to the section corner record or measured? That should be noted.
I don't think the header "CERTIFICATE OF SURVEY" should be on it though. Better to call it "EXHIBIT A" or some such thing and a note that "this is not a boundary survey....." yadda yadda.
Maybe thats not what you're talking about though?
But if they are out there setting corners, and then trying to disclaimer themselves out of their liability - its a whole different story. The MTS and the state board will over trump any disclaimer. Good luck with those types...