Zodiac System

Contact your previous employer with whom you have your I-140 approved. He should be able to help you

When H1b is filed in premium processing, your attorney/employer will get email notification from USCIS which gives all the details, including I-94# and expiration date.

Your last employer should be able to back you up in case they are contacted by the immigration authorities at port of entry. Lets see what other experts advise

Get your education + work experience evaluated by a US evaluator. This should help.

I dont think new H1b rules are applicable to existing H1b cases with USCIS. Lets see what other experts advise

For a transfer, I-140 from a previous employer (in this case A) can be used. I dont think you have an I-140 from employer B yet. Let's see what other expert advise

When USCIS cashes the check associated with your petition, many times they do mention the receipt number on the check. Contact your employer/attorney for this (LIN/WAC/EAC) receipt number. If the petition is filed in premium processing, employer/attorney also gets an email notification to this effect. Due to COVID-19, hard copy of receipt number reaches late by postal snail mail.

When USCIS cashes the check associated with your petition, many times they do mention the receipt number on the check. Contact your employer/attorney for this (LIN/WAC/EAC) receipt number. If the petition is filed in premium processing, employer/attorney also gets an email notification to this effect. Due to COVID-19, hard copy of receipt number reaches late by postal snail mail.

When USCIS cashes the check associated with your petition, many times they do mention the receipt number on the check. Contact your employer/attorney for this (LIN/WAC/EAC) receipt number. If the petition is filed in premium processing, employer/attorney also gets an email notification to this effect. Due to COVID-19, hard copy of receipt number reaches late by postal snail mail.

Employer C will be able to file for your transfer with your I-140 approval from previous employer.

Why did you resign after getting the approval notice? Did you transfer (get another job with employer B)? If so, then anyway your employer A will withdraw your petition (whether approved or in RFE status).

Have your education + work experience evaluated and use this evaluation for filing your H1b transfer.

Consult an attorney, as your H4 is connected with your H1b from company A. Good idea to apply for H4 extension again, when you move to another company as employer A will most likely withdraw your current H1b (because of job termination), which may lead to H4 denial as it is connected with H1b approval from Company A. (Ask attorney if H4 application also should be withdrawn, when H1b is withdrawn by employer A, as denials do not look good on immigration records). You can start with new employer the day your properly filed H1b transfer reaches the USCIS. USCIS keeps track of the day and date they receive your petition.

H1 is always applied by employer.

Is the check cashed? You should be able to start with your new employer.