I-485被拒提問

我今天收到了移民局關於我的I－485的據信，信末尾還說“there is no appeal of this decision, but this denial is without prejudice to your ability to renew your application before an Immigration Judge”。請問各位牛牛，這句話是什麽意思？我接下來該怎麽辦才好？

另外，我請律師是請中國律師好還是美國律師好？有誰知道Missouri州St. Louis市哪個律師事務所打這種移民官司比較在行？

感謝各位的回複！