What if there are other family members in the house, e.g. elderly parents, in-laws, etc?

Again, the same general principle applies: a confinement lady's job is to care for the newborn and the mother.

If the confinement lady is required to cook for other members of the family (besides the mother), she will need to be told in advance and her fees will be higher due to the added responsibility.

She will not be able to provide any care for other members in the house, who should be either self-dependent or assisted with an in-house maid.