The official government program page and its FAQ, read directly rather than through a broker's summary, together with the eligibility requirements for the EB-1 and EB-2 categories through which successful applicants proceed.
One official page, read on the day you act
Printed summaries age badly, and this framework is new enough that its published terms have moved. Cecile should open the official page herself, note the figures as they stand, and record the date, so that later conversations refer to a known version rather than to somebody's recollection. Alongside it, she needs an honest reading of the EB-1 and EB-2 requirements, because the framework routes applicants into those categories rather than replacing them.
Her own documentation then follows from whichever category is realistic: business records, evidence of her role at the dealership, credentials, and anything relevant to admissibility. What she does not need is a broker-supplied package of forms presented as the application, and she should decline to sign anything that commits her before the eligibility question has been answered.