Contingencies _ The buyer's offer is contingent upon certain keys facts being confirmed. One example may be confirming that the current lease is transferable to the new owner. Also, their willingness to buy is contingent upon the due diligence period confirming that everything you have stated about the business is true.
Letters of intent may be advanced in the world of commercial real estate. In some specific domestic markets (for example in principal to principal deals between upstream Petroleum traders and producers in the same country, or certain Joint venture projects) they may be found. But there is no underlying and supported standard international application for the Letter of Intent.