My question is, I would like to have some formats of Offer Letters to company for our company's Real Estate Properties, Leasing Agreement Forms sample.

Where in the world, what kind of properties, to whom will you be leasing? We could write all day about this. But you don't want to do leases according to someone online. You talk to a local attorney about what is specific to your area and needs. Or you pretend to be a client and ask other property owners for a copy of their contract, and work on it, and then run it by an attorney.