Not safely. The published framework sets out a sequence of stages rather than a guaranteed schedule, the processing fee is spent before vetting concludes, and progression afterwards depends on an immigrant classification and on visa availability. Commitments that assume a completion date are commitments made on an assumption.
Nothing in the sequence promises when a stage will end
Owners contemplating this route frequently want to line it up with the sale of a business, a school year or a lease expiry, and the framework does not support that kind of planning. Vetting has no published duration. The gift follows only if vetting succeeds.
Progression through EB-1 or EB-2 depends on meeting that classification's requirements and on an immigrant visa being available, which is governed by demand rather than by the applicant. Thaddeus can sensibly prepare in parallel, by having his classification eligibility assessed and his records in order, but he should not sell lodges, sign an American lease or give employees notice against a date nobody has given him. Before each payment he should re-read the official terms, because the sequence is long enough that they may have changed since the last reading.