Explore out-of-state markets like the Midwest and Southeast, use local property managers, and join online investor groups.

Join online communities like Facebook Groups and BiggerPockets Forums to engage with experienced investors.

There is a lot of helpful information online, especially on BP, but nothing beats connecting with people in your market. 

Do you provide for online rent payment?

You can also check their reviews online at Google, Facebook, or Yelp.

I really like to think about it like online dating.

Write the property on the receipt and keep a digital copy and the hard copy.Quickbooks Online is a good software for both receipt capture and organizing what expense goes with which property.  

@Tyler GilpinGo online and check the local housing authority for that city.

Popular examples include Airbnb, Uber, and Buffer's early-stage pitch decks, available online for free.

Bigger Pockets isn't letting me include his contact info in this post, but it is easy to find online