CFP payed for by employer

I have been a financial advisor for the last 5 years. I’ve been thinking of getting my CFP early next year. My employer will pay for the material and everything as long as I stay 3 years after I receive it but if I leave early I’ll have to pay for the whole thing. The average cost I’m seeing is 4K and takes 9-12 months to get. How difficult would it be to work full time and get it in 12 months?