You can often look online for the county/city zoning map, parcel info, and zoning laws.  

Thanks so much for posting all this info I had been looking at Apke Land or Land Investing Online, while they give lots of free information if you really want in depth or access to their letters you have to buy their course.

The rates beat hard money and it's all online.  

Look at other rentals in the area and see not only how they are advertising or promoting online but also the inside and outside of the rental so you can create a similar environment to try to replicate the same results.

Yes, you still do online shopping and coordination and so on, but hitting 500 hours in this case becomes far more challenging.

We're hoping that there will be more listings coming online here in the next month or so.

Go to courthouse in city where your rental is, or see if docket is available online, and write down the names of the attorneys with the most landlord-tenant cases.

They’re doing this across all online platforms. 

Check county recordsUse online search tools like PropStream, Reonomy, PropertyShark, etc.Use local GIS mapping tools (ask your county)Search online directories for LLC or TrustTalk to neighborsHire a skip tracerSend a letter to the propertyThere are a lot of options.

The real work is locating these properties and I've learned the best way to do this is to work in towns/areas that have online GIS systems that map; topography, wetlands, soils, etc. and assessors data available for download either from local sources or listsource.com.