My question is: can I or one of my sisters lead the jamaat prayers at home without going to mosque if we don’t have time or cannot go out.
Can ladies read jamaat namaz at home? Is there any ruling that someone has to be more learned than the other to lead the prayers?

If there is my mother, sisters and sister in laws – maybe 3-5 ladies, can we read jamaat namaz at home? And is there ruling on who should or could lead the prayers?

It is possible and in fact very recommended. In the jamaat of ladies everyone would stand in one line including the Imam.

It is better that one who has more knowledge of the deen, and more taqwa, is the one who leads the jamaat.