The county recorders require a notarized disclosure from the the owner upon assignment that states that excess proceeds are available, how much much they are, and that they understand that they do not need to go through any intermediary and that there is no charge for applying for the proceeds.  

First of all, you must keep in mind that you must use a qualified intermediary for a 1031. 

As a seller, you must specify somewhere in the docs that you are selling with a 1031 involved and there will be an intermediary holding your funds until you identify your replacement property.

The overwhelming majority of construction materials we use in construction come from China which is why I would get them directly from the source rather than going through several intermediaries. 

There are many Qualified Intermediaries for 1031 exchanges that are creating a number of partnerships just to invest in these opportunity zones, so the investor would reinvest their gain via them on whatever asset they are comfortable with.  

@Bill ExeterThis may be more a question for tax expert more than 1031 exchange intermediary, but if the property is sold below fair market value, there is a gift.  

Details have not been settled just yet since our agent is the intermediary between both of us.

Any money you don't apply to the new purchase gets taxed.If you are planning a 1031, contact a qualified intermediary before you do anything.

Make sure you connect with a Qualified Intermediary BEFORE you do anything.

TREC permits a broker to be an intermediary and negotiate the contract with permission in writing from both parties.