How can I avoid PMI?

[Sam Rust]

I was reading a blog post today on BP and the author mentioned a deal that had 10% down but no PMI. I'm looking at starting out my invensting with a single family home, but the type I'm most interested in are a bit out of my price range if I needed to put down 20% to avoid PMI. Other than the normal 20% down, are there any other ways to avoid PMI?

Thanks!