>I would like to live in an area with access to public transportation as I do not have a car.

I wouldn't personally want to live in Munhall then, that's going to be a rough commute using public transit. I love Munhall, would be one of my top choices to buy a house (along with Bellevue on the western side) but neither are great places to be dependent on transit.

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>I am also an artist so I would love to get involved with the local art scene if at all possible.

Try to find something in Dormont close to the T (only sort of light rail we have).. direct line downtown and Dormont is somewhat artsy. Regent Square might be a decent fit on the East End. Lawrenceville has a lot going on but is relatively pricey to live, so I'd probably go to Millvale or Etna if I wanted to be closer to there (or Highland Park, but also pricey). Polish Hill is a fairly convenient location in the middle of everything. All of those would give you a little bit of a buffer from the college crowd but keep you out of sketchy neighborhoods.

What art medium do you use? Is that your source of income or just a hobby? What do you need to have nearby?