Can I add another related Matter to an Existing Expert Contract?

You Contracting Officer may allow you do do this.  It is possible to modify an existing contract to add the new matter, since the matters are related.  In order to proceed, please send a modification memo to your Purchase Request Preparer.  The memorandum needs to explain how the matters are related, and that the expert will be performing the same work for the new matter.  The memorandum should also include whether the Experts hourly rate is the same, and how much additional funding you need to add to the contract for the new matter (x hours at y rate, for a total of xyz).