Since it did not work out to sell with agent, was thinking about trying the for sale by owner approach, but wanted to reach out to see if anyone had any advice on pros and cons, and any guidance. 

As someone else stated, once you own a property in SC your property taxes will be about triple that of an owner occupied person!

Go to Etsy and search for "rental property tracker," and you will find hundreds of nice spreadsheets to track 10-20 rentals, usually for under $10.Software has extremely helpful features like online payments, marketing syndication (click a button, and your property is advertised on multiple sites), electronic document review/signing, maintenance tracking, and owner reports.

Another option is to do the BRRRR method, buying a distressed property from a wholesaler, direct to owner or even MLS sometimes, fix it up and force appreciation and then refinance all your money out. 

As an investment property owner, this means less maintenance and fewer unexpected expenses from storm related damage, often resulting in more affordable insurance premiums, less wear & tear on mechanical equipment, roofing materials or exterior surfaces.

They are often for sale by owner, because they did not like what the 3 agents told them about the value of their property, so they decide they are just greedy agents and list is FSBO for 100k more.

I spoke with the listing agent and we went back and forth with the owners who inherited the property.

It is purely people hoping/expecting that someone in the future will pay more than the current owner did.Pardon the hyperbole but:IBMCoca ColaMGMChaseDOW ChemicalWoolworthALCOAFord Being a big name did not make investing in NAZI Germany a smart or good move.Finally, can you tell me what Bitcoin is worth? 

Owners mistakenly ASSUME all PMCs offer the exact SAME SERVICES and PERFORM those services EXACTLY THE SAME WAY, so price is the only differentiator – so, they often select the first PMC they call or that calls them back!

Visiting the property in person is beneficial too, as it helps you understand the flow of the house and assess how well it can be marketed later on.For turnkey properties updated by previous owners who lived there can be a good buy.