No such rule as only one 485 is allowed.

However, multi 485s sometime cause delay, unless you help CIS link them. One of my friend filed two 485s. His cases were transfered to local. During the interview, the officer found that he has two A nubmers. The office did not approve his case, instead told him that they need to get another A file before a decision can be made. He almost waited another year.

所有跟帖： 

• When you file second I-485,fill in your A# is OK -xiaobaitu- ♀ (0 bytes) () 01/10/2006 postreply 10:20:43

• Then CIS will combine your 485. Someone in immigration.com -mytwocents- ♂ (89 bytes) () 01/10/2006 postreply 11:59:00

• you still need to officially write to request your 485 transfer -152183- ♀ (221 bytes) () 01/10/2006 postreply 12:32:39