
When I started doing this, the idea of having more than 1 paper due in a day or a longer paper due in less than a day was something that made me nervous. I remember the first time my account showed 3 whole papers on it. Back then, each paper took several drafts and I printed it out to proof, ideally after not seeing the draft for a few hours or overnight. Now, I sit down and just write it out, spell check, read it over once, and it's better than the product of all those drafts and revisions. Then I'll do that several more times most days.
Now, it is totally routine for me to have 5 or 6 short papers (2-6 pages each) due within the next 12 hours, another 3-4 scheduled for the next afternoon, and more than a paper a day already listed on my calendar for the next week. I may grab 4-6 papers during the day due in the next 24-36 and the whole time I'm writing, I'm also watching the boards for new papers and taking them for the next 24-48 hours and answering emails about papers in negotiation with new potential clients. Many times, I'm already working on one due in 5-6 hours when a new rush order comes in due even sooner that I take, complete in 1-2 hours, and then finish the one I was halfway through in time for the original deadline. I wouldn't say that I do 20+ pages a day regularly, but it's not rare either. I would not say I do it "easily" although I have just sat down and banged out 10-12 page papers in a sitting on stuff I can just free write. A single 20-25 pages is about my maximum in a day, but if it's 3-4 smaller papers totaling the same # of pages, that's usually easier and I do that much more often.
People who see it on my end think it's amazing but that's how I look at someone who can take apart and put a car engine back together in a day and I'm sure good mechanics rip apart and fix several cars a day pretty regularly. I'd feel like I accomplished something impressive if I changed one oil pan in a day and did it right. That's really the only way to make a decent fulltime living doing this. If you're hoping to finish 1-2 papers a day and not mutli-task, not change topics on a dime, and not work like that about 25+ days every month, this is a way to make some spending money but you're going to need a fulltime job to just supplement with your writing.
As far as private work goes, I usually have about a dozen or two dozen people who need me pretty regularly in a few-month period...some people get their degrees and you don't hear from them again for a while but new people are always just starting to give me work. Most of time, if I do 1 paper for someone I end up doing a half a dozen, or dozens. I've had some people use me regularly for as long as 3-4 years. People refer you to their friends too and we get a lot of those also. From 2008-2010, I had one group of 4 nurses who were all friends from 1 referral and each of them were giving me 4-5 papers per week at times.