Barrington also claimed accreditation by the International Association of Universities and Schools Inc. (IAUS).
Some other mills have been found to use the same addresses as the education providers that claim accreditation from them.
But Florida authorities said Kinney had falsely claimed accreditation from two agencies.
All fraudulent diploma mills are also unaccredited schools, although they may claim accreditation from an unrecognized agency.
Formerly Knightsbridge claimed accreditation from the World Association of Universities and Colleges, an unrecognised accreditation agency.
The college claims educational accreditation through the Accrediting Commission International, an unrecognized accrediting organization formerly based in Beebe, Arkansas.
It claims accreditation from the Accreditation Council of Higher Education, an agency that does not appear on lists of recognized accreditation associations of higher learning.
Some such organizations claim accreditation by non-recognized/unapproved accrediting bodies set up for the purposes of providing a veneer of authenticity.
It has been described by The New Republic magazine as a diploma mill that "claimed official-sounding accreditation to attract hundreds of people to obtain degrees".
Some diploma mills claim accreditation by an accreditation mill while referring to themselves as being "fully accredited".