No. The official process determines the applicable EB-1 or EB-2 classification and requires eligibility, admissibility and visa availability. A private benefits agreement is not that determination.
Identify what the company has actually promised
A letter may confirm funding without naming the principal proposal or included relatives. Resolve those facts before using it for a household budget. The ability to pay does not remove the individual’s evidence, vetting or visa-availability requirements.
Vetting is described as a background review, and any immigrant must also satisfy the general admissibility grounds in the immigration statute, which cover criminal history, prior immigration violations, health and security matters. An individual applicant such as a veterinarian in private practice may apply without an employer; the corporate route with its larger per-employee gift, annual maintenance and transfer terms is a separate track for sponsors. Published corporate transfer terms allow the existing gift contribution to support another employee under the programme’s process, but the replacement still needs a new background review and the required legal eligibility.