So here's one answer to your situation: Get a valid PTIN. Anyone can obtain one from the IRS, they'll want your SSN on file and fingerprints, but once you have that, you can legally e-file as much as you want. There is no test, no "certifications" required. It's like being a Notary; literally anyone can do it.
Then you can find the workarounds that googling for 5-10 minutes will show you how Turbotax can be used to e-file more than that. The PTIN keeps you out of trouble and "legal."
