Be careful about it. Deferring or accelerating a commercial transaction in reliance on an administratively implemented program's expected terms turns an uncertain benefit into a certain cost. The assessment of the underlying category can usually proceed without changing the commercial timetable.
Do the immigration work in parallel, not in front
Most of the useful preparatory work — building the source-of-funds record, obtaining an assessment of which employment-based category might apply, taking advice on the family's position — can be done while a transaction proceeds on its own merits. Very little of it requires the sale to be delayed. Where a genuine sequencing question exists, such as how proceeds are held after closing, it can usually be addressed within the deal rather than by postponing it.
Because published terms of a developing program may change, re-verify them at each decision point from the official program information, and involve a licensed U.S. immigration attorney alongside the commercial advisers rather than after them. Hypothetical example: Renzo is a robotics integrator with a buyer ready to close in thirty days.
Create a calendar first for sale closing, tax reporting, bank availability, the official application, background review, any later payment instruction, immigrant processing and family documents. Signed sale records and bank statements settle the origin of funds; current program materials settle when payment is requested. Sequence the sale for commercial reasons, retaining records before escrow closes, and avoid making a contribution based on an unofficial promise of speed.
The typical failure is assuming every case has the same timeline. Eligibility, admissibility, visa availability and government processing can each affect when permanent residence is actually obtained.