"1031 Cooperation clause": Should I include it in my sale contrac

[Jeff Klein]

I am close to going into contract for the sale of my property. Is it required or desirable to include a 1031 cooperation clause or any other language regarding my intent to sell this property as part of a 1031 exchange?

(The closing will be scheduled several months from contract signing, at which time I will probably already know the property I will purchase. If not then I will know well within the 45 day period.)