If you haven't yet, you need to talk with a qualified intermediary to ensure you are compliant with the 1031 stipulations.

But usually only 1031 qualified intermediaries like us will have significant experience in that interpretation and process.

Quick caveat: There may be some closing costs on the buyer or seller side that can't be taken into account for your net. ( example, as a seller, I don't think you could subtract a utility bill that you owed anyway from your net, even if it was paid out of closing by the title company - just things that are considered cost of the sale) You can check with your intermediary on which closing costs "count."

I received some good advice from Qualified Intermediaries; Thank you. 

@Jim ValdiviaAccountants should be involved on both ends of a 1031:Evaluate whether an exchange makes sense from the tax point of view, including your current situation and your future goalsAfter the exchange for proper calculations and reportingDuring an exchange itself, you will be guided by the Qualified Intermediary (QI) such as @Dave Foster or @Bill Exeter.

That's quite an inheritance you have here but you absolutely need to get in touch with your Estate Attorney as well as your CPA and 1031 Intermediary to get all the facts together before proceeding. 

You need an intermediary involved before that.

@Gage Foley You could try reaching out to a 1031 Exchange intermediary in your area.

You do not have to make your offer contingent upon your 1031 Exchange (although it might be safer to do so); it is really the paperwork that the Qualified Intermediary drafts along side/with the transaction that matters.  

Make sure you have you qualified intermediary in place prior to the closing of the sale and they'll be your guide.