Rubuta ci gaba don wannan sakin layi - Baya ga rubuce-rubucen ta, Moderno ta gudanar da harkokin kasuwanci daban-daban. A cikin 1907, ta sayi kantin sayar da littattafai kuma ta sayar da kundin ƙasashen duniya. Shekaru biyu bayan haka, ta sayi gonar abarba a Fajã de Baixo, inda ta shuka amfanin gona don fitarwa zuwa Amurka. Ta kuma yi aiki a matsayin wakilin inshora ga kamfanonin kasuwanci na kasa da na kasa da kasa. A cikin 1908, Moderno da Sousa sun kirkiro kungiyar kare lafiyar dabbobi ta farko a cikin Azores, suna kafa kungiyar Micaelense don Kare Dabbobi (). Ta fi son kafa Jamhuriyar Fotigal kuma ta goyi bayan juyin mulki
wanda ya maye gurbin sarauta. A cikin tattaunawar kundin tsarin mulki da ta biyo baya, ta ba da gudummawar kasidu da yawa a cikin goyon bayan kisan aure don kare mata, ta ba da shawara ga ilimin mata da kuma matsa lamba ga 'yancin mata. Ta shiga kungiyar Republican League of Portuguese Women kuma ta shiga cikin ayyukan kungiyar da yawa. A watan Agusta 1912, yayin ziyarar Lisbon, de Sousa da Moderno sun sami girmamawa daga Republican League saboda kokarin da suka yi na kasancewa manyan masu fafutukar kare hakkin mata da ilimi a cikin Azores