I checked with attorney and according to him:
1) Opting CP or AOS has nothing to do with time it takes to approve I-140 by any service center.
2) One can file CP as well as AOS if he/she has two separate approved I-140. They are two independent cases and one will be handled by INS and other will be by DOS after I-140 approval.
1) Opting CP or AOS has nothing to do with time it takes to approve I-140 by any service center.
2) One can file CP as well as AOS if he/she has two separate approved I-140. They are two independent cases and one will be handled by INS and other will be by DOS after I-140 approval.