The investor's spouse and unmarried children under twenty-one may be included as derivatives and receive conditional permanent residence alongside the principal. A child who marries, or who reaches twenty-one before the relevant time, falls outside that group and needs an independent basis.
Ages and marital status are measured, not assumed
Derivative eligibility is defined narrowly. A spouse qualifies, as do unmarried children under twenty-one, and all of them receive conditional permanent residence for two years if the petition succeeds. Because these matters turn on dates, a household with older teenagers should map the timeline explicitly against how long each stage is expected to take, and should ask about the statutory protections that can apply to a child's calculated age in some circumstances rather than assuming either the best or the worst.
A married child of any age is outside the derivative group. It is also worth noting what the status offers that temporary categories do not: permanent residence, subject to the conditions being removed, means each family member may work and study without a category dictating what they may do. Two points deserve advice before filing.
Conditional residence carries expectations about maintaining it, which matters to an owner still running a company in Ontario. Every derivative's conditions come off through the same later filing.