Lancaster/Palmdale has areas that could offer you a good return for rentals - keep in mind that the area has a different lifestyle of living -  more of a family/commuter town than a hip/cool place to live.

The 3 bedroom townhouses about a mile away rent for $850-$895, and my friend rented a 4 bedroom older house on this side of town for $1200. 

Hi@Perry Zheng - It's not just the redeveloping urban core but the new huge industrial developments going up east of town.  

These are typically 4plexes in the $350-500k range.Give me a shout when you get into town.

I own a Duplex in a smaller town , and there are some wooded and vacant lots near by maybe one block over.

If you plan to live in the building, knowing what part of town will fit your wants/needs will greatly narrow things down and allow you to focus on the right properties and choose one that works for you.I've been investing in Louisville for several years now and would be happy to answer any specific area related questions you may have via PM.

Spend the next couple months here on the forums, blogs, listening to podcasts, reading some more books, and networking around town.

The first house was a small 2 bedroom with 1 bath in a farming community that was only nine thousand dollars. wife and a future partner said no one wanted to live down in that little town.

PM me if you have any more specific questions about working in this town. 

I lead a team of agents in Vegas and we work with out of town investors all of the time.