The Howard Hughes Corp. said Thursday that it expects to begin pre-sales of its first three residential condominium towers in Honolulu’s Kakaako neighborhood by the end of this year, or early next year, as it awaits Real Estate Commission’s approval of its condo documents. The Texas-based developer noted in its third-quarter earnings report that it anticipates receiving the Real Estate Commission’s approval by the end of this year. Development permit applications and detailed plans for the…