What is the procedure to sell land?

The word Land presumes Raw Land - not a home for Sale.

The procedure to sell Real Estate varies from State to State. For example selling your Real Estate in New Jersey requires a Lawyer to complete the transaction. While in California all you need is an Escrow Company to accept deposits, order a title search, and prepare closing papers, such as Deed of Trust.

Now the next question is to you. Is it your land or someones else;s Land ?

If its your land you can sell it by owner, with the help as stated above.

If its someone else's land then you need a Real Estate Brokers License.

Or Salesman License working under a Broker. You just can't decide to sell land as a business without a license to do so.

To sell land find comparable land sold. Is the land for commercial, industrial or residential use. You can find that data through the Office of the County Recorders Office. The procedure to sell land is not much different than selling ones home, with exception you need to know the Zoning Code. The Zoning code can be found at City Hall, Engineering and Zoning department. You also need a Zoning Map, location and dimensions of the property. If the land hasn't been surveyed, you need to hire a Surveyor to mark the boundaries called property lines. All these maps should be available including a topography. You must disclose all relevance of the property, land conditions, including its sub surface.

Since your question is wide open, it tells me you lack severe knowledge, and therefore I suggest selling your land using a competent real estate agent. You also need the know how of financing, the property worth, to be able to negotiate a bank loan, if a loan is involved, and how much you are willing to carry on your own as a second Trust Deed.