A Qualified Intermediary, or QI, is an independent third party to the transaction whose function is to prepare the documents necessary to create the exchange, as well as to act as the independent escrow agent for the exchange funds.
Section 1031 is part of federal law, so it applies to federal taxes, which are the same no matter what state you're in. You can perform a 1031 exchange between business or investment properties located anywhere in the United States, so long as they meet all other 1031 requirements.
How to Do a 1031 Exchange Choose a qualified intermediary to coordinate the exchange. Sell your current real estate property. You have 45 days to identify potential replacement properties. You have 180 days to close on a replacement property. File IRS Form 8824.