Would my client’s father, who is a post-stroke patient benefit from taking Heal-n-Soothe, as a way to help promote healing?

This is a brilliant insight that will indeed be of help, and for the reasons you envision, that clotting events contributing to stroke symptoms and their damage to the tissues and the blood supply needed for recovery and maintenance of normal function become impaired as a consequence of fibrin deposition, so using an enzyme supplement will help to restore things and add benefit for the vascular repair.