I have been separated from my exhusband for over 2 years. I have signed divorce papers and am waiting for divorce to be finalised.. I have only recently claimed to have disability living allowance, and my exhusband is telling me that he is entiltled to half of any payments I receive and any back payments owed to me because we have shared custody of our 2 children. Is this right

No.. You've got to consult that with the lawyer who arranged the divorce papers for your husband shouldn't have any benefit for that. And also, he should not share because of the children instead he has to pay child support. Find out more with lawyers from www.ledgerlaw.com