Following your father's recent passing, you're seeking clarity on a conditional inheritance outlined in his will. The will states you receive half a share of his self-acquired property only if your wife and children do not claim or receive a share. You're unsure how to fulfil this condition and if a notarised document is required. Legal advice suggests the condition is enforceable, and you might consider creating a similar will yourself to demonstrate intent, though the original will only takes effect after your lifetime.