Can a claim on your dead husbands estate also include life insurance to spouse?

If the life insurance policy had listed as the beneficiary the spouse only then it is not considered part of the estate and is not subject to claims. If the beneficiary is the estate then it is subject to claims. The only problem with the spouse being the only beneficiary is if she was a party to the claims personally then perhaps she and the proceeds from the life insurance could be subject to these claims.