Thanks for the link to The Hill, it had some decent information not only about the Steele dossier but also about Prevezon real estate management company, which I posted about on this forum about a month or so ago. Prevezon is a firm licensed in Malta, IIRC, that laundered stolen taxes from Russia through purchasing New York real estate. It was under investigation by the US attorney's office. Prevezon's lawyer went to Trump Tower to meet with Jared Kushner, Don Trump Jr and a couple of others to talk about the Magnitsky Act, but as Prevezon's attorney she most certainly wanted the US case against the Prevezon money laundering  dropped in exchange for something as yet unknown. One of Trump's first acts in office was to fire that US attorney and drop the lawsuit, which was settled for a pittance.

The Hill supports the Slate and others, that the RNC first bought the Steele dossier but didn't use it when Trump clinched the nomination. DNC bought it but never used it.