Capital Gains savings by selling rental with allotment sale

[Jason Thomas]

A financial advisor has told me about using a Single Premium Immediate Annuity (SPIA) as a vehicle to lower my capital gains with the sale of my rental property.  It is to be setup as a structured allotment sale over a 7 yr period to avoid a lump sum capital gain payout.  I don't want to do a 1031 exchange and this seems like a possibility.  Does anyone have any experience with this as a legal way to save on capital gains for rental property sale?