Depends on your circumstances... i.e mediocre associateship, good associateship, mediocre ownership, good/productive office ownership, lifestyle costs, other variable/fixed expenses in your daily life, etc. If you're doing 30k/month in income as an associate, subtract half for taxes + misc other deductions (worst case scenario), leaves you with about 18k (40% deduction), maybe 5k/month on COL, left with 13k, it all depends on how you split the remainder towards loan service and discretionary income. If you were able to fully utilize 60% of your gross wages @30k/month and direct all that towards loan servicing, you also have to factor in how much of that goes towards interest. 18k*12 = 216k/year, assuming you live with parents and mooch off everyone. Probably can pay it off in 1-2 years as an associate.
I wouldn't advise it though. Put your money towards owning an office and the payoff will be even faster.