Question on starting of PERM process w.r.t H1B visa expiration

[mohan2016]

Hi Folks,

I have few queries on EB2 - greencard processing

My Qualification:
I am a Technical Lead with overall 9 years experience in IT industry(With Bachelor degree).
Working in US for last 4.5 years with same employer.

My current employer...

[hello_2011]

Hi Expertes,

Would you please give idea, how long should wait to file PERM application from new employer?

Because I want to change my employer A to employer B and from employer B I want to file my new PERM. Is there time wait limit after changing job to file PERM application...