AC Gateway, a development firm that plans to partner with Hard Rock International on a "boutique" casino in Atlantic City, was the sole company to file a completed application, according to the New Jersey Casino Control Commission. As M&C reported in July, the developer was one of the three companies that expressed interested in constructing one of the two new, smaller casinos with a minimum of 200 guest rooms in the beach destination -- projects that state lawmakers authorized earlier this year. The other two firms, Pinnacle Entertainment and a local New Jersey investment group called California Avenue Ventures, did not meet the Friday application deadline. In June, the Hard Rock group submitted plans to the state Dept. of Environmental Protection to build a $275 million project in phases, with a total of 850 hotel rooms. The casino-hotel would be built on the Boardwalk at the south end of town, possibly opening in spring 2014.