TN -Employer change

Hi ,

I am canadian citizen , was on TD visa .. i received offer from the local US company and i did the status change TD -> TN with Employer A successfully .
i was in giving multiple interview and i received another offer from Employer B . Now i am planning to go to border again to change my TN changes Employer A to B .

is that okay to do it in short time ? any Questions by officer or adverse impact on processing ?

Thanks
 
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