The Cheshire based developer has been in business since 2012 with 15 successful schemes under its belt containing 3,800 apartments.
Fortis had a construction division called Beaumount Morgan Developments which went into administration two years ago owing subcontractors and suppliers £7m.
Begbies Traynor is the liquidator at Fortis and a statement of affairs shows debts of more than £19m.
These include £5m owed to the tax man with HMRC currently carrying-out an investigation into the company.