Thank you.
In applying for a new work permit and already having a job which the employer offered based on the open work permit (vowp) must the employer still do and provide me with LMIA or exempted since I already have a job offer and working?
The VOWP does not make you exempt from an LMIA. Whether you are LMIA exempt or not depends on the job / occupation. Generally speaking, an LMIA is required.