The 2008 sale of a Palm Beach mansion to a Russian oligarch was cited in a letter issued Friday as one of the "few" occasions in which President Donald Trump profited from business with Russian interests.

The letter was written by Trump’s lawyers in an apparent effort to refute speculation of the president’s connections to Russian business and political figures. It covers both Trump’s personal dealings as well as those of The Trump Organization, or TTO.

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"With a few exceptions — as detailed below — your tax returns do not reflect (1) any income of any type from Russian sources (2) any debt owed by you or TTO to Russian lenders or any interest paid by you or TTO to Russian lenders, (3) any equity investments by Russian persons or entities in entities controlled by you, or TTO, or (4) any equity or debt investments by you or TTO in Russian entities," said the letter written by attorneys Sheri Dillon and William Nelson from the law firm of Morgan, Lewis & Bockius LLP.

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One of those "few exceptions" detailed in the letter was Trump’s sale of the 62,000-square foot mansion at 515 N. County Road formerly known as Maison de L’Amitie, or House of Friendship.

The sale raised eyebrows at the time — and has remained a source of some local intrigue — in the 11 years since because of the price paid by the buyer, Dmitry Rybolovlev, and his unclear motive.

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Rybolovlev paid $95 million for the property, $13 million more than the most expensive mansion sold up until that moment in Palm Beach, and more than $50 million than the $41.35 million Trump had paid for the property just four years before.

In March of this year, a Rybolovlev spokesman said the Russian billionaire bought the property as an investment.

"The property was acquired for investment purposes by the Rybolovlev family trust, as was clearly stated at the time of the purchase in 2008," according to Brian Cattell, a New York-based spokesman for Rybolovlev.

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At the time of the purchase, though, the Post cited another spokesman from one of Rybolovlev’s companies as saying the purchase was a real estate investment by one of the companies in which Rybolovlev had an interest. Ownership of the property was subsequently transferred to a trust.

As for suggestions of any other business or personal connections between Trump, who earlier this year became the nation’s 45th president, and Rybolovlev, the latter’s spokesman said there are none.

"We are aware of a number of rumors and far-fetched theories circulating but none of them has any basis in fact," Cattell told the Post in March. "Mr. Rybolovlev has never met Donald Trump."