The system is simple and, thus far, largely unavoidable. When a user attempts to make a post, Craigslist asks for verification with a viable phone number. It then automatically calls the number and issues a verification code which must be re-entered for the post to go live.
For the purposes of the IRA distributions, a first-time home buyer is anyone who hasn't owned a present interest in a main home for the previous two years. For example, if your parents have promised to leave you their home in their will, that isn't a present interest in the home, so you still qualify.
Income. One of the most important qualifications for a first-time home buyer is a steady income. A buyer's income (or the combined income of a couple, if both are buying the home jointly) will determine the amount of the mortgage lenders offer, which in turn sets the price range that is realistic for you. New home buyers should also have a reasonable degree of job security.