Here's the La Canfora tweet that some are talking about:
<blockquote class="twitter-tweet" data-lang="en"><p lang="en" dir="ltr">Early rumblings out of New Orleans is Gayle Benson likely to sell Pelicans in next year or so to pay for taxes on Saints</p>— Jason La Canfora (@JasonLaCanfora) <a href="https://twitter.com/JasonLaCanfora/status/974435049390125056?ref_src=twsrc%5Etfw">March 15, 2018</a></blockquote>
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A tax professional can interrupt here and give a more definitive answer, but my understanding is that there shouldn't be any estate taxes at this time because it's a transfer to a surviving spouse.
Many responders are similarly refuting what La Canfora wrote, notably Fletcher Mackel, who says:
<blockquote class="twitter-tweet" data-lang="en"><p lang="en" dir="ltr">I am told from a senior <a href="https://twitter.com/Saints?ref_src=twsrc%5Etfw">@Saints</a> /<a href="https://twitter.com/PelicansNBA?ref_src=twsrc%5Etfw">@PelicansNBA</a> source this is “unequivocal untrue.”<br>My source, who’s as high up as it gets, describes this tweet as:<br>“wonderfully misinformed” <a href="https://t.co/nut3pKQvib">https://t.co/nut3pKQvib</a></p>— Fletcher Mackel (@FletcherWDSU) <a href="https://twitter.com/FletcherWDSU/status/974453240174608385?ref_src=twsrc%5Etfw">March 16, 2018</a></blockquote>
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Now, to be fair, she will eventually have to have her own succession strategy, whether that may be to sell the teams to a (presumably very rich) third party or to commit to some kind of financing structure that allows it to remain as an ongoing enterprise. It's not obvious who would be a next-generation successor but it's possible that this has already been structured.