If he needs help, companies like IKEA partner with services like TaskRabbit to connect consumers to skilled laborers who are vetted and insured by the company. This last part is really crucial. If your husband were to get hurt, or if this person from the big box store were to steal or break something, your son would have no recourse. This could cost him a lot of money.
The Guardian's Saturday magazine is looking for throuples to talk honestly about the experience of love and commitment. We're particularly interested in talking to throuples living together under one roof, as well as throuples who are raising children as a unit of three parents. Is it easier to manage childcare duties when there are more adults in the room? Or more difficult? It is important that all parties agree to being featured.