Kang, an Arizona State University product, won for the second time on the Futures Tour. At the age of 22, Kang won her professional debut at the M&T Bank Loretto Futures Golf Classic in 2002.
Lee also posted a 2-under 70 on Sunday and will have to wait for her first professional victory.
Meredith Ward carded a 1-under 71 in the final round and took third place at 6-under-par 210 at the South Course at East Lake Woodlands Golf & Country Club.
Courtney Swaim (71) and Emily Bastel (73) shared fourth place at 3-under- par 213, followed by Jenny Gleason (67) and Sung Ah Yim (68), who tied for sixth at minus-2.
Bo Mi Suh shot a 4-under 68 and took eighth at minus-1, while Katie Connelly and Kelly Cap tied for ninth at 1-over-par 217.