incorrect property lines

[John Lewis]

 I'm in escrow on multi-unit property in Utah and title wants an exception on their title policy for correct property lines because they property lines overlap and they don't know what they should be.  I asked them to look as far back as they can to find when the error occurred but they have to do more research on it. I have two title company's working on this.  I might have to pay $2,000 for a surveyor to see if he can get it corrected. Anyone have this issue? suggestions?

Thank you