Stevens' will, which he wrote on 9 August 1550, perhaps already in bad health, and its codicil, written three days later, reveals more details about Thomas' subsequent life. At that date he had a daughter, Mary Stevens, to whom he left all his property, specifically noting his plate and an estate he had recently bought at Alton. Mary was clearly young because he created a trust supervised by a friend, Christofer Wallison, to manage the property and help her make a suitable marriage. Mary was present at the creation of the will and agreed not to marry anyone without the consent of Christofer. At his death Thomas was a rich man, which can be seen from the large sums he was able to leave as gifts to friends and his servants, many of whom are named in the will. It was a long way from the poor Cistercian monk of Netley.