Can I Change client while my H-1B petition is still being processed ,currently on OPT

Hi employer x has sponsored my h-1b mentioning client address y on LCA,The petition has been picked in lottery in masters quota.If i change my client now, and if a RFE comes requesting for client y papers and vendors supporting client y to my sponsor what should be done?can i file a new LCA and i-29 form again with new client address?or its not possible to change client until my h-1b application is approved?

Pretty difficult to change location while H-1 is pending. Your LCA would have to be modified and USCIS doesn’t do that for pending petitions.