Get a Realtor to review the information and inform you. Realtors can set the criteria to only send you either type of sale and can show you how to tell the difference.
I have many first time buyers that have seen the benefits of Purchasing rather than renting. The tax write offs, lower monthly payments, bigger home and pride of ownership have been big factors. To offset problems with the home we like most Realtors have the home inspected. Also Home warranties are a must and I recommend my clients to re-up from year to year, for if nothing more than piece of mind.
Has not happened to me.