Any recommendations for key words to look out for in the listings, or maybe any strategies you're willing to share for locating motivated sellers?

A few tips that may be helpful to you here on the BP website as you build your portfolio:You can set up keyword alerts so anytime someone posts about York, Baltimore or any of the other markets you're evaluating, you'll be notified.

Here are some recommendations for you:Find and connect with other BP members that are in your area: http://www.biggerpockets.com/meetSet up keyword alerts to be notified of the topics that interest you: http://www.biggerpockets.com/alertsRead Beginner’s Guide: http://www.biggerpockets.com/real-estate-investingCheck out BP Podcasts: http://www.biggerpockets.com/renewsblog/category/podcast

Here are some recommendations for you:Find and connect with other BP members that are in your area: https://www.biggerpockets.com/search/usersSet up keyword alerts to be notified of the topics that interest you: http://www.biggerpockets.com/alertsRead Beginner’s Guide: http://www.biggerpockets.com/real-estate-investingCheck out BP Podcasts: https://www.biggerpockets.com/podcastWishing you the best!

Here are some recommendations for you:Find and connect with other BP members that are in your area: https://www.biggerpockets.com/search/usersSet up keyword alerts to be notified of the topics that interest you: http://www.biggerpockets.com/alertsRead Beginner’s Guide: http://www.biggerpockets.com/real-estate-investingCheck out BP Podcasts: https://www.biggerpockets.com/podcastIf you wish to tag someone in the conversation on the forum, type @ followed by their name and then select the name of that person which should appear below the comments box.

Here are some recommendations for you: Find and connect with other BP members that are in your area: https://www.biggerpockets.com/search/usersSet up keyword alerts to be notified of the topics that interest you: http://www.biggerpockets.com/alertsRead Beginner’s Guide: http://www.biggerpockets.com/real-estate-investingCheck out BP Podcasts: https://www.biggerpockets.com/podcastWishing you the best!

I actually found my broker here on BP so once you choose a market, definitely set up some keywords and run some searches to find who is active in the area.

It seems challenging to do that now as there are so many posts every day and so many users.Some things I've wondered:I have keyword alerts, but maybe they're not specific enough? 

You can set up keyword alerts so anytime someone posts about Midland you'll be notified.

Once you pick a market to invest set up a keyword alert for that area.