The personal connection is key.Networking at the Courthouse: Many wholesalers find deals by pulling lists from public records.

One way to demonstrate your knowledge is to provide answers to questions/provide information to the public on forums such as BiggerPockets. 

Recording of the deed with the county where the property is located is generally a necessary step to inform the public of your interest in the property and thus to prevent other/future claims or disputes as to the ownership of the property.

As an unlicensed wholesaler, you cannot market the property with a "For Sale" sign, post it on the MLS, or advertise it on public forums as a property for sale.

I have an STR that will be going public in the next few weeks in Greenville SC that has a rich industrial textile history, and the house is very close to one of the newly renovated mills and a secondary/mini downtown area.

Notarization does two things; first it provides prima facia evidence the Grantor acknowledged signing the deed and appeared to understand the nature of the act, second, it's generally a prerequisite for recording in the public records. 

I expect @Julius Vincent is correct, but I have notes from a few years back from a podcast with a publicly notable tax advising expert.   

Write down the addresses and then use public records to find the owner's information to reach out to them.What to Do After You Get Your LicenseOnce you have your license, the next step is to find a brokerage that's a good fit for you.

I like publicly discoverable operators that you can find easily with a Google search, managing hundreds of millions to a few billion in assets, with a focus on single assets, not funds, at least 10 years of experience in their current form, at least 10 buildings taken full cycle, an excellent track record of delivering outstanding investor returns throughout their history, and deals on offer that are similar to the deals they have completed successful.

Publicly listed.