Weighted Average Lease Term, commonly referred to as WALT, is an important metric that commercial real estate investors and commercial property managers are well-versed in, or at least they better be. A WALT calculation, or figure, represents the average time remaining on the combination of leases within a commercial property, a commercial portfolio, or a commercial real estate investment and is weighted or calculated according to the proportion of rental income each lease contributes to the overall portfolio. It is a paramount factor of investment and concomitant income stability, combined with tenant turnover risk. A longer WALT calculation is indicative of a more secure income stream and lower re-leasing or turnover risks.

A letter of intent is customarily employed to reduce to writing a preliminary understanding of parties who intend to enter into a contract, or who intend to take some other action such as merger of companies. An agreement to agree to something in the future.