I started working with Employer A in Dec 2016 and they have filed my H1-b transfer in premium and it got approved in March 2017 , and is valid till Oct 2019. I started working with employer B in July 2017 and they have filed for my H1-b transfer (general). The case is still pending. Now I might get a permanent position opportunity from Employer C and they are ready for sponsorship. Can I file a transfer again to employer C with pending application with employer B, with approved I-797 from employer A and USCIS receipt of employer B and paystubs from both A and B ?