Thoroughly analyze prospective inve­stments through inspections, financial revie­ws and familiarity with local landlord-tenant regulations.

If you really need a partner, consider looking into local meetups and regional conferences to meet people. 

I am considering whether to keep investing in similar rural areas with populations below 15,000 or to transition to purchasing properties in larger cities.

Look out for probable markets taking into account issues revolving around employment opportunities, population shifts, tendencies in renting out homes coupled with economic stability.

Go to BUILD YOUR TEAM at the top of your screen and you can search for other MEMBERS or LOCAL MEETUPS.

Partner with local Real Estate Agents:  Partner with agents that can help market the property to their network of buyers. 

They are not familiar with local ordinances related to managing your property.2.

A local contractor would be an ideal buyer and could likely complete the repairs far cheaper than the OOS OP.   

You'd want to connect with a local broker on that front, but a few of them have programs based on the census-tract you're either selling or buying in. 

Investigate areas with strong growth potential and rental demand, and take into account regional real estate market trends.Networking: Attend local real estate events, sign up for internet discussion groups, and establish relationships with seasoned investors.