I listened to BP Podcast 189 today that featured Tarl Yarber.

I like the search features: https://www.biggerpockets.com/search

Often electrical and plumbing runs through the damaged wood, ensure that any repairs needed to these features are included, eg. a plumbing pipe has dropped, but it is old and will split if moved.Several months back I had a contractor working on a bathroom and another working on a roof on a 1910 Victorian house. 

I like the search features: https://www.biggerpockets.com/searchAlerts can be really helpful too: http://www.biggerpockets.com/alertsThere are a few self-contained guides that you can access here: https://www.biggerpockets.com/guides

Just make sure your property has the features of the properties that are at the top of the market.

After my tenants got on board, I started using the rent collection feature which charges no fee and other financial tracking features they offer.

I like the search features: https://www.biggerpockets.com/searchAlerts can be really helpful too: http://www.biggerpockets.com/alertsThere are a few self-contained guides that you can access here: https://www.biggerpockets.com/guides

@Rick Stambaugh , I use realeflow and i'm transitioning to Podio.....realeflow for data is a great option it also has a feature that allows you to market your properties to other investors that use realeflow.  

You'll need safety features like a pool alarm.

I self manage so I don't use that feature.