As you work in the voice over field, you'll become pretty good at seeing questionable jobs or someone running an ad for a needed voice over who will say things like what you'll read below. (I'm referring here to low budget or no budget jobs you'll often see on Craigslist.) Some of these I find humorous. Some are just plain sad.
"This should only take you 10 minutes to record."
"Easy money. We're paying $20." (For a VO job that should pay $200.)
"You don't have to have professional equipment. You can record on your phone."
"We have nothing to pay you for this job but it COULD lead to future work." (Yes, more non-paid work. Thanks for the heads up.)
" Nothing in the budget for you to record this short script. We're doing this for no pay too because it's a cause we believe in." (I believe in causes too. But they don't put groceries on the table.)
"This is for no compensation but it would be good for your voice over portfolio."
"We're not looking for a real professional for this. Just someone who can do a decent job reading the words on the page."
"If interested, please email us your rates." (I'd be glad to. But I need more specifics from you about the job so I can quote a proper and fair rate according to the type of voice over it is.)
"This is a super simple project..."
This is only a short "red flags" list I've come up with. If you've been in the voice over biz for a while, I'm sure you have some of your own. I've learned to trust my gut.
If you see any of the above in an online ad, RUN. DON'T WALK! Your good judgement will thank you later.