How to Verify the Validity of a Sworn Power of Attorney in Turkey Quick answer: To verify a sworn power of attorney in Turkey, check that it was issued and stamped by a notary, confirm the signatures match those on file with the notary, verify the issue date and that it's still valid, and, if needed, have a lawyer or sworn translator review it — especially for real estate or commercial transactions. In Turkey, a sworn power of attorney is one of the most important legal docum