Smart contracts, self-executing contracts whose terms are written directly in code, have emerged as a significant innovation in the domain of real estate leasing. This paper summarizes various points of research on applying smart contracts to real estate leasing, their benefits, challenges, and future directions. With the help of blockchain technology, smart contracts aim at easing leasing agreements, increasing transparency, and automating different leasing processes. This summary brings together recent literature and case studies to offer an overview in-depth on how real estate leasing has transformed with smart contracts.