MGM Resorts International is reported to be exploring the sale and leaseback of the MGM Grand & Bellagio casinos on the Las Vegas Strip. Bloomberg News said the company is working with an adviser to solicit interest from potential buyers as either as stand-alone sales or bundled together. In a conference call with investors, MGM Resorts Chairman and CEO Jim Murren said no decision has been made and the plan will develop from the work of a committee of three independent directors commissioned back in January to evaluate ways to extract value from the company’s massive real estate portfolio, possibly…