--Maple--

Obviously, I'm not OP. But I'm an adult child of someone who is as duped into a snakeoil salesman as you seem to be (although thankfully she's not spent that much money on this person).

You asked how you can reach them and turn them back to reality. To frank - you can't. Your parents are adults and they are making the choices they feel are best for them. If you've tried in the past to educate them and let them see how much of a schemer this person is, there's nothing else to be done other than protecting your family. As frustrating and heartbreaking as it is, this is their walk. It will, unfortunately, if it hasn't already, cause strife or tension in your relationship with them (it has in mine) but try to remember that you love them and they love you, in their misguided way.

Former medical transcriptionist here, my top speed is about 130 and the requirement at my hospital for transcriptionists is 90 wpm.

Not OP, but a Canadian who used to be a medical transcriptionist. Used to for a good reason. Up here, most health authorities are phasing typists out and going with outsourcing companies as they're cheaper (they pay per audio minute, generally, which is really bad), and some departments (our local ER for example) are having doctors do their own stuff through voice-to-text programs now.

Former transcriptionist here, I always changed it to purulent and was never penalized for it. We had rules that our typing was to be verbatim where possible, but we were also allowed to either quote the physician directly or, in the case of purulent, use a more appropriate word. I had one physician say that a patient's house was "covered in cat piss" and because I knew this physician liked her dictations exactly verbatim, I put that in quotations.

The first hospital I worked at had an outsourcing company doing our backlog. The at-home typists would transcribe everything according to our standards and it would be placed in an "On Hold" folder. We would rotate who got to do the editing of those reports, to ensure accuracy. A majority of them were absolutely appalling in terms of quality. Literally no care went into ensuring what was said was accurate and most of us had to essentially re-type it all out ourselves.

After having worked for the same company at home, I absolutely understood why that was. That company paid me $0.65/audio minute. If a 1-minute-long dictation took me 2 minutes to type, I'd already lost money. I remember some days I got nothing but really short (under a minute in length) ECG reports and Holter reports. By the end of the day, I think my average was something around $3/hour. When you're paid by production, unfortunately you're forced to push stuff out fast at the cost of quality. It's one of the main reasons I finally quit that line of work.