@Franklin Urbaezj In this stage of the market a lot of people are looking further up stream for deals, and that's understandable, but I don't think sheriff and tax sales are a good start for a beginner at all, esp in PA... PA can be a difficult place to operate in terms of legalities. The process of buying encumbered property is fraught with ways to ruin you in your very first buy if you don't know exactly what you are doing.
And be sure, wherever you choose, to take a close look at local property taxes. They can be astronomical in some places and constitute almost a second mortgage, making what looks like a deal quickly turn into a no-go.
Not to discourage you from PA in general, but those are a few state-specific things to be aware of as you go along. Read all the horror stories and instead of letting them burst your bubble, ask for more and take them all as worst-case scenarios and be grateful you can learn from them and not live them. Check out the PA-specific forum here on BP, it's a good place to ask questions specific to the areas you're interested in.