This pawn store can conduct business in English. Accept Cash. Pawn loan is a huge part of MMI-Corporation business, as well as pawn loans, buy, sell and trade, check cashing. The most favorite things to buy and sell in MMI-Corporation are: diamond rings, necklaces, earings, bracelets, chains, coins, TV's, computers, smartphones, DSLR cameras, appliances, top brand tools like Hilti, Makita, Bosch, work radios, xbox, playstation, nintendo game consols and gears, musical instruments and equipment, stage light, hunting and fishing stuff, golf clubs, bikes, jerseys. People say that prices are the best at this place with retail store atmosphere.