We will be doing wills soon and have 2 children together (married 25 years). DH has another child, now a man in his 30's who he has never met. The mum spilt with DH and she met and married someone else whilst pregnant. The child was adopted by the new man and has his name etc and was raised by him. (DH has never had any contact whatsoever and they ceased CM payments from DH after about 6 months after the child was born). I guess they wanted to cut ties. DH feels a lot of guilt but genuinely wanted the child to grow up in a stable family so just kept away.
So we have found out that he does know that DH is his (biol) father but hasn't tried to make any contact.
So my legal questions are - Does this man have a claim on DH's estate when he dies? Do you we need to include him in any way in the will (to avoid a claim)?