1. Notary Public: Notaries public are authorized to witness and authenticate documents. They verify the authenticity of signatures and ensure that parties signing the document are doing so willingly and knowingly.

2. Lawyers: Lawyers can verify legal documents by reviewing them for accuracy, completeness, and compliance with legal requirements. They can also provide legal opinions on the validity and implications of the documents.

3. Government Officials: Certain legal documents may need to be verified or stamped by government officials or agencies. This could include documents such as land deeds, birth certificates, marriage certificates, etc.

4. Accountants: In some cases, accountants may be involved in verifying financial documents or statements for accuracy and compliance with accounting standards.

5. Title Companies: Title companies often verify property-related documents such as deeds, mortgages, and title insurance policies to ensure that the property transactions are legally sound.

6. Bank Officers: Banks may verify financial documents such as bank statements or letters of credit to confirm financial details or transactions.

7. Embassies or Consulates: For international documents, embassies or consulates may provide verification or authentication services to confirm the legitimacy of signatures and seals.

It's important to check the specific requirements of the document and the jurisdiction in which it needs to be verified, as different types of documents may require verification by different professionals or authorities.