Yes, I am trying to obtain a no objection letter from the Nigerian consulate. And these are the steps or requirements
Formal Application letter to the Embassy stating your request for waiver of the 2-year home residency requirement. Include your current address and telephone number, please.
Copy of your Case file number from the United States Department of State, Visa Office, Waiver Review Division.
Copies of your Nigerian passport from page 1 to page J-visa is stamped.
Copy of your release letter from your sponsor in Nigeria/US.
Letter from your current Employer/Institution.
Copy of your current Exchange visitor program number (DS2019).
Copy of your current I-94.
$50 money order payable to the Embassy of Nigeria.
A certified self-addressed prepaid envelope from USPS, UPS, or FedEx.
So I am trying to figure out what a copy of release letter from your sponsor in Nigeria/US is. Do you have an example or sample?
