Deductions & credits

My sister uses her SSI income to support herself and our uncle. She just wasn't sure if she could claim him as her dependent since he's not disabled or a child.  Based on others responses he does qualify as her dependent even though she has little W2 income. Her SSI income is considered income she uses for their support which will make her eligible to claim him as her relative/ other dependent and receive a stimulus check for him.  He received already recieved a stimulus check last year but this check will be going to her, not him, for her provided support.  So the turbotax program was right as the tax experts stated.