Handover dates are set by the business and can move quickly in either direction, which is hard on a family plan. Eligible spouses and unmarried children under 21 may seek L-2, and a spouse in valid L-2S status is employment authorized incident to status.
Protect the family plan from business pressure
A company's need to fill a role can push a household into commitments before the immigration position is settled. Agree in advance which family decisions wait for a confirmed milestone: schooling, a lease, a spouse's resignation. If the family may follow later, plan for the principal living alone for a period and budget for it.
Keep the dependants' documentation ready so the family is not the constraint when the case resolves. Name the specific decisions that will wait, rather than agreeing in general that the family will be careful, since business pressure works on unnamed commitments. A lease, a resignation, a school registration and a shipment are four separate decisions with four different costs of reversal, and they should be attached to different milestones.
Where the family may follow later, budget for the principal living alone for a period and decide who bears that cost. Keeping the dependants' documents ready throughout means the household is not the thing holding up a move once the case resolves.