Moving with an infant

How is it moving with an infant? Like we may be moving into my brother in laws because he fell on some hard times and he gonna take the basement and we are gonna take the upper of the house witch is 3bedrooms, since there’s 4of us and only him.. then soon we will buy his house, when he can afford to move into another place.. we just paid our place off so we are gonna let our family move into it and buy it from us.. my daughter is 4months old.. is it difficult or should I find a babysitter for her?