Can Buyer Pay Sellers Capital Gains Tax?

[Donald Hendricks]

I purchased my home & land in December 2014.  Since that time my neighbor sold his land and the new owner and I have been fueding.  The new neighbor wants to buy me out.  I have agreed to sell, but not until December, so that I do not have to pay capital gains tax (2 of 5 year rule).  Neighbor says that he will pay the capital gains tax and wants to close in 30 days.

Is this permissable?  How should this be structured?  Is this going to come back and bite me in the butt as a "gift"?  

[Brent Coombs]

@Donald Hendricks, don't forget, if your Capital Gains Tax is a known dollar amount at your originally "agreed" sale price for December, you shouldn't just add that exact amount to that price - because the NEW agreed price will incur an even GREATER capital gains tax - which you should again add to their purchase price (and so on)! You're in the box seat here. Offer NO discounts for anything, and put a premium price on everything! Cheers...