Buyers sometimes want to renovate, deliver furniture or use the property before registration. Early key handover is practical, but legally sensitive. The buyer is not yet registered owner, but may already carry costs and responsibility.
This post explains what should be regulated when use begins before land register registration. The focus is possession, risk, charges, insurance, rescission and escrow.
Early handover is not automatically wrong. It needs a clear agreement so a practical step does not turn into a dispute.