In lease agreements does daughters too quire to visit notary and sign

My father owner of house got paralysis attack for treatment need more money so decided to go for leasing house which is in my father name owner ! We using relative (mama help for leasing) he asking all sons and daughters along with father owner of house must visit court/notary and sign notary agreement Here problem is I feel why women/daughters should visit Notary/court I.e., if all family member sign requires I.e., sons/ males can visit females can do sign at home! Note: daughter married