@Shweta Sharma, A sale of a coop is seen as the same as a regular sale of real estate for purposes of the 1031 exchange. 

Verify air filter has been changed regularly.

I think we know it exists, but without any type of advertising, im not sure how many "regular" people know it exists and to use it. 

All income to a traditional IRA has the same tax treatment and any earnings will be considered regular income when distributed - whether from stocks or real estate. 

What I am finding is that the lots within HOAs sell for double or even triple of lots in regular communities.

First, always aim for clear and regular communication.

Does it happen regularly and no one catches it, sure.

Scott from Bigger Pockets speaks there regularly. 

Then a regular 1031 exchange can be done with no problem.

Of course, you can't protect yourself completely, but this will also help you prepare for buying the next properties a little better, and it's an exercise I generally do when I'm on a showing for a property I'm serious about so that I'm factoring this into my analysis to some degree in a "capex" reserve.Capital ExpenseRoofWater Heater x2All AppliancesDriveway/Parking LotBoiler x2FlooringPlumbingWindowsPaintCabinets/CountersStructure (foundation, framing)Components (garage door, etc.)