<human>: As above. Obviously a throwaway and a couple of minor details changed to help with anonymity. 

My sister in law is a single mother to 4 kids, an 11 year old boy, 8 year old girl, 5 year old girl, 2 year old boy. She has been involved in various messiness and nastiness due to drug addiction etc etc and she doesn't know who any of the fathers are for the kids so there are no other family. My husbands mother died when we they were quite young from cancer their father is older and in a nursing home with dementia and not fit to care for the grandkids.

She was involved in a car accident where she smashed into a tree and is in critical condition, unlikely to survive, she was driving drunk.

We are now being asked to move back to my husbands small town and take on the kids.

Neither of us want to do it. We're happy to still be involved in their lives (we go visit a couple of times a year, send cards/gifts for birthdays etc) but not raising them.

My husband and I are childfree and have never wanted or planned on having kids. We don't want to move back to his home town. Our apartment can't accommodate them, it's a 2BR/1Bath. It would drastically change our lifestyle for a very long time and it's simple not what we want in life. 

One of the children is high special needs and we don't want to take on that burden. 

It's OK to say no right? And it's ok to care about our nieces and nephews at this time without wanting to take them on and raise them right?

Can you provide a brief rundown of the text in within 3 sentences?
<bot>: husband's sister likely to die, have been asked to move and raise her 4 kids including one with high special needs, husband and I don't want to even though we care about them. It's OK to say no right?