The New York Attorney General explains what they’re up to with that subpoena:
I took action to force the Trump Organization, and specifically EVP Eric Trump, to comply with my office’s ongoing investigation into its financial dealings.
For months, the Trump Organization has failed to fully comply with our subpoenas in this investigation.
We are seeking thousands of documents and testimony from multiple witnesses regarding several Trump Organization properties and transactions, including from Eric Trump, who was intimately involved in one or more transactions under review.