HRK/ Avoiding & Extending Time Limits on H-1B&L-1 Status ...

See 8 C.F.R. ยง245.10(j). Presumably, it would take the position that the substituted-out alien is not eligible for a seventh-year extension. If the substituted-out alien, however, has already obtained a seventh-year extension, there is no indication that USCIS would attempt to revoke the approved extension petition. ................
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