After the 99-year leasehold period in Sharjah concludes, the lease agreement will expire and the ownership of the property will revert back to the original freehold owner. At this point, the leaseholder may have the opportunity to negotiate a new lease agreement with the freehold owner or vacate the property, depending on the terms and conditions agreed upon. It's essential to review your lease agreement and consult a property expert to understand your rights and options when the leasehold period ends.