Unlimited Edits
It typically takes about a month to go from brainstorm to finished draft of your personal statement, but it varies quite widely. You might be able to finish in three or even two weeks if you're motivated. If the essay isn't your first priority, it might take three months or more.
Admissions Consulting
You can put together all of your applications quite comfortably in three months, but it's possible to finish in a month or less if you work very hard.