Western Style family seeking for helper

I have a helper who work for me for almost 8 years already.

However, She is going to be retired since her son have graduate from school.

My househose will only have my 10 years old daughter, my older sister, me and my girlfriend, and 3 maine coon cats.

I don't usually create rule for the helpers as long as it is acceptable. 

Helper have her own room and bathroom.

My home is about 860 Sq feets - 3 bedroom, 2 bath room, 1 helper bedroom and 1 helper bathroom.