It all depends on your state, each state board has their own rules.
Typically a CPA needs to work within the same company and "supervise" your work, to then sign off on your hours.
Most states require a bachelors degree plus an additional 30 credit hours to meet the 150 hour requirement (you don't necessarily need a masters).
You can read more about your state's requirements here.
https://cca.hawaii.gov/pvl/files/2013/0 ... 10.14R.pdfAt this point in your career, there is going to be substantial opportunity cost to you obtaining the CPA certification, years of school, years of study for the exams, then the years of experience. You likely would not opt for the 1500 chargeable hours of audit work, as you are a tax guy, so it looks like 2 years experience would be required.
Not entirely sure if you can hire a CPA to work in your firm, who "supervises" you. Seems a bit paper thin to me unfortunately.
Some states do allow NASBA verification of experience, which is a chargeable service, but it depends on your state board whether that would be acceptable.
(I did the exams in 5.5 months, 550 hours, went 4 for 4, average score of 92 - but my results were not typical. Most people take 12-24 months to pass all 4 parts. It's an intense ride.)