Well, vastav bro..I could be wrong but since MBA does not fall under STEM category,u may not be eligible for opt extension, it doesnot matter if your company is everified or not.But you may want to make sure with your student advisor on this if your company agree to enroll in everify.If both agree,u should be cool..Well, vastav bro I wish u good luck with h1b,I know how it feels to wait..