Trump University instructors were to teach students how to "capitalise without harm" and find ways for "sellers to move on without shame," according to a December 2008 summary of the seminar.
An earlier 2007 memo to enrollment counsellors stated that about 1.5 million US homeowners would face foreclosure that year and laid out how they should advise students to seize the "tremendous opportunity" to purchase properties at "major discounts" in "hot markets" such as Arizona, Florida and Texas.
The roughly 400 pages of documents included "playbooks" on how to recruit students, directions for how instructors should deal with the media and other details about Trump's seminar programme.
They were unsealed at the weekend by US District Judge Gonzalo Curiel, whom Trump called "hostile" and "a hater," adding he believed the judge was Mexican.
New York's attorney-general slammed Trump for his comment on the judge's ethnicity. Curiel is an American who was born in East Chicago, Indiana, and graduated from the Indiana University School of Law.
Clinton's attack on Trump last week was prompted by recently released audio that Trump recorded in 2006 for Trump University.
In remarks on a possible "bubble burst," Trump said in the recording: "I sort of hope that happens because then people like me would go in and buy" to "make a lot of money".
- Reuters, AAP