I'm just asking here, but with many Appraisal Companies, how can one keep total 100% control of ones signature. Usually every appraiser in the company uses the same appraisal software, they complete a report and send it to the owner of the company so that he can review and then apply his/her signature. I am thinking this is the procedure for the company involved with this post.
I know the software offers a "lock" when the signature is applied, so that the form can not be altered, but if two signatures go on the report, only the last to sign can actually lock the report (as far as I know, maybe this is wrong), or else they will not be able to sign off on the report.
So there has to be a degree of trust between the two signatures involved. If this is how the OP's company is set up, the owner could go in and alter any previous appraisal completed by someone else by typing over any report that already has the signature. The first appraiser could have "control" over the signature, but not total control of the contents of the report until it is locked when the second signature is applied.