A rehome (or rescue) with an unknown background is a lot of work. Add kids to that equation and it's ........not sure what word would fit best there.
My husband and I, are on duty all the time. We have two kids under the age of 3 years and two rescues; a now 6 year old and the other 8 year old. Got our first 2 months before my first child (and he's a bit reactive) and our second this past summer. It's a lot of work.
My husband says that after these two pass, we'll only getting gold fish from then on!! yeah right!!