Start with the school calendar and allow room for the principal and dependent steps to be handled together or separately as the applicable process allows. Canadian citizens generally need an E visa, but confirm each family member’s appointment and interview requirements rather than assuming identical steps. No processing estimate guarantees a June arrival.
Keep a fallback for the step that slips
Set checkpoints rather than one deadline: principal case decided, dependent documents gathered, appointments booked, arrival planned. Keep a fallback if any step runs past June, such as a later flight, rather than a housing or employment commitment that cannot move. Note again that a visa's validity period and the authorized stay recorded on the I-94 are different, and that departure when status ends remains part of the plan.
After the commitment becomes irrevocable, which usually means after the closing rather than before it. The location lease is harder to make conditional, so it may be signed with a start date that follows the expected consular timeline, or with a break clause. Only then is the consular appointment requested; wait times vary by post and should be checked before the partner sets any deadline.
Coordinate the transaction and immigration process without guaranteeing a filing or visa date.