Dr. Monzer Kahf, a prominent economist and counselor states: The fact is: every person has a full authority on what she/he owns as long as she/he is in normal mental capacity and not in situation of a terminal illness that she/he will die within year because this is the immediate implication of the right of ownership in Islam.

There is an advice (only advice) from our most beloved Prophet, pbuh, that one is better to leave heirs rich rather than leave them poor.