Why do the emails go out every 2 weeks? Why not send an email once per year, and give people a year to respond? Maybe send a second email or a text if the final month approaches and the person hasn’t responded yet.
And 3 days seems a little hasty. What’s the rush, after all? If someone is dead for 3 days they’ll surely be dead for another 300.
Clicking an email link every 2 weeks for the rest of my life is going to feel like a chore after a few months.