The agreement your shared home already runs on.
By the end, you will have a written Shared-Living Agreement: the recurring work named and divided, a backup for the jobs that cannot wait, a meeting cadence and one shared calendar, a shared-money arrangement, a written process for ordinary disagreements, an explicit safety boundary, a short list of what the household keeps for morale, and the events that trigger a review. It is the document another responsible adult could read and understand how the home runs.
Naming and dividing shared work including the invisible noticing and scheduling, backups for the jobs that cannot wait, the household meeting and one shared calendar, shared money and the family gift-loan-support distinction, a written conflict process, the safety boundary where that process stops, keeping morale on purpose, and assembling the whole agreement with its review triggers.
Couples or family therapy, custody or divorce law, landlord-tenant law, and domestic-violence counseling. Where the material touches those, the course points to the verified reference pages and to applicable law. The systems view of the household, its functions and rhythm, is Unit 1's Household Operating Plan.
Eight modules, three tiers.
Work through them in order. Each tier ends with something you can point to and say the household can now do this.