The situation is common: a co-owner does not live in their condo, and a relative lives there permanently. That person is not a co-owner — they are not on the notarised deed — and not a tenant, since there is no lease.
The Civil Code has a word for them all the same: an occupant.
What to record
On the person, choose the Occupant profile.
On the unit record, set the occupancy status to Occupied without a lease, alongside "Owner-occupied", "Rented" and "Vacant".
The two go together: the first describes the person, the second describes the unit.
What the profile grants, and what it does not
An occupant gets exactly a tenant's access — it is the same access role in the app. In practice: the register documents meant for them, starting with the building by-laws, the syndicate's communications, and the assistant.
Nothing beyond that: a 0% share of the common expenses, no vote, no access to the syndicate's financial data. The co-owner's share and vote remain entirely theirs — recording the occupant takes nothing away from the owner of the fraction.
A unit has one non-owner slot
This is the limit to know before you start: Tenant and Occupant share a single slot on a unit. A unit cannot have an active tenant and an active occupant at the same time. Try the second and CondoAide refuses: "Conflict: another member already holds this role on this unit."
Co-owners are not limited that way: an undivided fraction can carry as many as the deed provides.
That single slot has a practical consequence: occupancy-linked obligations — vehicle, pet, emergency contact — are routed to whoever holds it, tenant or occupant, as soon as they are assigned.
If your unit is rented and a relative of the tenant also lives there, that second person belongs under household members, below.
Why the syndicate has to know
This is not administrative convenience, it is an obligation, and it comes from two articles.
Article 1057 CCQ makes the building by-laws binding on "the tenant or the occupant of a private portion", from the moment a copy is given to them by the co-owner or, failing that, by the syndicate. The law puts the two on the same footing: it does not distinguish tenant from occupant as regards the by-laws.
Article 1066 para. 2 CCQ addresses this case precisely. Where the private portion is occupied otherwise than by lease, the syndicate gives the occupant written notice stating the nature of the improvements and non-urgent work, the date they will begin, an estimate of how long they will take and, where applicable, the period of evacuation required.
In other words: for non-urgent work, the person the syndicate must warn is the one actually living there — so it has to know who that is and how to reach them. Neither "Co-owner" nor "Tenant" allowed you to record that without saying something untrue.
Occupant or household member
Both exist, and they answer different questions.
A household member records a resident without opening any access to the app, with their category — spouse, child, tenant or other — and whether they are an adult or a child. No account is created, and this does not consume the non-owner slot, so it can sit alongside a tenant.
The Occupant profile is for the person who needs that access: the one the syndicate owes the by-laws and its notices. If you recorded an occupant as a household member in the meantime, you can now give them their own profile.