LMO - job offer to continue work with former employer, what to do

[frantastic]

Hey,

I had a 2 year Visa, during that time I was involved in starting a new business. My Visa expired and I had to go back to my home country. I have since received a job offer to continue developing the business of my former employer.

What is the best way to get approved to start working right away. My employer isn't looking for anyone else to do this job since I was involved in developing the business.

I think LMO applications usually should include the proof of employee searching.

Any good advice? (Also: how long does it usually take to get LMO/work permit)

Thanx