(Image source: southfloridaplaces.com) After successfully taking Hilton Worldwide Holdings Inc (NYSE:HLT) public, Blackstone Group L.P. (NYSE:BX) is at it again with another hotel IPO. La Quinta Holdings Inc has filed registration documents with the SEC for an initial public offering. Blackstone took the hotel chain private in 2006. According to Reuters, Blackstone is looking to raise $4.5 billion from the IPO. This is just an extension of Blackstone’s big bet on real estate; so far the investments are paying dividends. The housing market is improving and the IPO market is red hot.