Family comes first at all times. If, however, your sister tried to take advantage of you just because it suits her, how would you respond? Would you quietly give in to her ridiculous demands for the sake of her three defenseless children, or would you stand your ground? This is the story of a perplexed sister. After a contentious divorce, the older sister of the original poster (OP) desired to live with her and her spouse until she could afford to start anew. OP and her spouse eventually agreed…