assiting a non-mahram

Q: I wanted to ask if helping a non Muslim/Hindu whose husband is dead with financial help, does Islam allow this for me?

Q: Is a brother (caller of Islam) obliged to continue helping a sister with disabilities if she has no one? She learns the deen through him instead of others. If the brother is choosing to not help her, will he be responsible before her in the Hereafter? He is choosing to not help her, because he cannot deal with her.