Closing and immigration authorization run on different clocks. The commercial timetable depends on diligence and financing; the immigration side depends on evidence preparation, the applicable procedure, and government action that no one can schedule. Six weeks may be achievable for a purchase, but no fixed decision date can be promised for a visa or an admission.
Build the delay into the contract, not into hope
Negotiate what happens if the buyer cannot yet be present to run the company: a management arrangement, a longer handover, a staged payment, or a walk-away point. Set internal milestones for the diligence pack, the funds trail, and the final evidence review, and confirm current submission instructions for the route actually chosen before committing to any date. If ownership or funding changes mid-process, revisit the facts rather than filing the earlier version.
One sequencing point is often discovered too late. The investment generally needs to be committed and at risk before the application is made rather than afterwards, so a structure that waits for an approval before releasing any funds can leave the applicant unable to show what the requirement actually asks for. Discuss with counsel how escrow terms can reflect that while still protecting the buyer commercially.
Hypothetical example: an aquaculture hatchery purchase is drafted with release conditioned solely on a visa outcome, and the buyer is advised to revisit those terms rather than file against an arrangement under which nothing has been irrevocably committed.