As long as the business portion of the land is at least equal to the amount of your sale  that would satisfy your exchange. 

Quote from @Anthony Sigala: We are all aware of the 1% rule--the gross rent produced by a property must equal 1% of the of the property's acquisition cost.

Money makes you happy only so often.But a good place to work keeps you happy every day you show up.Yes, 𝗺𝗼𝗻𝗲𝘆 plays a vital role.But 𝘸𝘩𝘦𝘳𝘦 you work?

Bryson: Seller Financing OfferPurchase Terms1.Purchase Price: $215,0002.Down Payment: 20% of the purchase price, equal to $43,0003.Financed Loan Amount: $172,0004.Interest Rate: 6.5% per annum (fixed)5.Initial Amortization Schedule: 12 years (144 months)6.Balloon Payment:•At the end of 24 months, the buyer will make a balloon payment for 50% of the remaining balance of the loan.

The Finish Schedule serves two vital purposes:1.

Higher inflation equals higher interest rates. 

The other is equally certain it will sell around 550.

If the loan was fully funded at closing and since then the loan is in an interest-only payment period, these numbers would equal. 

For existing properties, you must make substantial improvements (equal to the property’s value, excluding land) within 30 months.Ensure the duplex qualifies as an OZ investment and complies with QOF rules.

The Chicago Association of Realtors'® specifically state "When you become a Dual Agent, you owe equal fiduciary duties at that point to both parties in the transaction, and you lose the ability to negotiate for, strategize and advise either one."