You're approached by a company that offers training to people interested in becoming a mortgage broker. They promise a great package which also contains "high quality leads" and "fast payouts." And the selling point is that you can have a whole new career for a measly $4,000--not nearly the price of a full college education.
The bad news for you is this: most of these companies are a scam. The leads will be poor and the clients might not even know what they are signed up for. The payouts will come slow, if at all.
How to avoid: do your homework. Research the company extensively on forums and check if they're a member of the Better Business Bureau. Don't get all your information from the company's own testimonials and don't trust them just because they have the words "Financial," "Mortgage" or "Services" in their company name.