Utilizing a buy and hold strategy is a great way to get started and in this market, should be the most used. Real estate has its cycles and they always come back. Many investors and newbies, are sitting on the fence saying that they missed the last market "run-up" and there will never again be a cycle so good. That is incorrect, as cycle repeat. In fact, the market we are in now may be even better than the run up market from 2002-2006, it will only require a differnt strategy. From 02-06, anything you bought in CA turned into large gains inside of 6 months. Flipping was easy and anyone could have done it. Today's market requires a diferent strategy (Buy & Hold). Buy low and now while RE is on sale and very few are buying, and sell later when everyone else is buying. That is how you make $ in this market.
If the market in your local area is not currently condusive to this strategy, look outside your area or even your state. No sense buying in a poor market when there are good markets abroad, regardless of what you here in the news.
Purchasing multi-family units are excellent investment choices (in my opinion , the best right now), particularly new constuction as they come with builder warranties (little or no maintenance costs for 1-2 years), they will have greater future appreciation (compared with older units), and they will be easier to sell when the market turns to an upswing.
As others have mentioned, due your homework (due diligence) and most importantly, run the numbers to make sure the deal makes sense. Shoot for $100 per door as a minimum.