My father had to stop work as a result of illness due to black magic. Who is meant to take over the financial responsabilities in such a situation

That is a cop out really. No one had to succumb to suggestion, which is what black magic is. What was it, oboyah? It doesn't matter, you are letting someone else control your life. GET OUT OF IT. I ABSOLVE IT. TELL HIM SO?

Whoever can work takes over to pay bills, the same as any NORMAL people do.