My FIL came to live with us 10 months ago with his 50 year old daughter who is developmentally disabled. She is like a toddler in that she can walk, feed herself, has limited speech but cannot physically take care of herself (bathe, clean her bottom, dress herself). For the first few months, I found myself taking care of all her needs as well as their large dog. My FIL had a stroke 16 years ago and has lost some movement on his right side but he can still walk, drive and make meals. I became upset that he ditched all his responsibilities and would sit on his recliner, browse the Internet or go for walks so after a while I stopped taking care of them because my husband wasn't taking care of his sister at all either. Me and DH sleep in the basement so I now spend all my time there. That forces FIL to take responsibility for his daughter and dog. My husband and I have discussed that we don't want to take his sister after his father dies; however, his father does not know that because he and late wife refused to place SIL in a home. FIL assumes that we will take her after he dies and insists that SIL call me mom. I don't like that because I am 9 years younger than her and I don't want to be wiping her butt but for the rest of her life. Its also difficult to go out because she gets into strangers personal space and talks very loud in public. FIL has sole guardianship so SIL is not on any waiting list for a home. I worry that when FIL passes, we will be stuck and be waiting years to place her. I feel bad about feeling this way but I don't want the responsibility. I have my own 4 month old and don't want to be responsible for a 200 pound baby. I also feel like our lives will be on hold because she is difficult to manage and we won't be able to travel especially overnight trips. I don't want to drop her off and leave her. We want to visit her and take her out on day trips but don't want the 24/7 responsibility. She also gets $1000 per month in Social Security Disability that can help pay. She is currently not receiving any in-home help because dad doesn't want to pay for it so she only bathes once a week.