h1b transfer pp timeline

9/19 transfer petition received
10/10 upgraded to pp
10/19 RFE (due 1/14/18)
1/17 RFE Response received by USCIS ( sent on 1/11, Fedex delivered on 1/12, but didn't show as received by USCIS till 1/17)
1/22 Approved

reason for RFE: Specialty Occupation
response strategy: a ton of files and a letter from my manager
我的华人女律师虽然很有耐心拖到最后一刻才交response 但不管黑猫白猫 能捉到老鼠就是好猫