I'm really not quite sure what you are asking in this email. This house or houses? This listing is a single family home. It is, however, already under contract with an accepted offer. This is one of the problems with Trulia - it is very outdated with updates. Most often, it shows homes as active when they're not. This one went pending in under one week - so you need to act quickly.
If you want to buy one and rent it (I assume that's what you meant to say), there is always risk as a landlord. Doing proper home maintenance is important to comply with the city's rental code for occupancy is one, and then finding qualified tenants who respect the home can be a challenge in any area.