How long you have to complete the remaining credits varies from state-to-state, so the best I can advise you to do is to call your state board and inquire about it!
However, I can help out more with the online accounting classes. 🙂 I took all my accounting classes from Louisiana State University and was quite pleased with them: https://is.lsu.edu/ Click “college level courses” on the left then select Accounting and it'll show all the options. Looks like the courses are up to $505 each (they were $364 when I took them, but tuition goes up ridiculous amounts!), but that's still not bad for a college course! One labeled “online” are a minimum of 8 weeks, maximum of 6 months, everything is online including exams; ones noted “web-enabled” are a maximum of 9 months, minimum is based on only being able to submit 3 homework assignments per week, so if there's 12 lessons it'd be a minimum of 4 weeks till your last homework could be submitted plus a couple weeks for the exam to arrive with your proctor (web-enabled doesn't have online exams), and then a week or two for it to go back and be graded.
If you decide to go this route – or with any other self-paced route – just an FYI that tuition rates tend to go up July 1, so I'd try to be enrolled in everything I was going to take before then. So, if you wanted to take your courses 1 at a time, and around work etc. thought it would take you 3-4 months each, then I'd register for one now and the other two late-June, just make sure one is web-enabled so you have 9 months to complete it.
The one caution I have to give with LSU courses is that there's very little instructor involvement or response. So, if you can use the books, Google, this forum, etc. to navigate your way through the material, you'll be fine…but if you're counting on information from the instructor, you might not be very pleased with their courses!
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