We don’t know any PMCs to recommend in the area mentioned, but since selecting the wrong PMC is usually more harmful than selecting a bad tenant, you might want to read our series about “How to Screen a PMC Better than a Tenant”:https://www.biggerpockets.com/member-blogs/3094/91877-how-to-screen-a-pmc-better-than-a-tenant-part-1-services-and-processesWe recommend you get management contracts from several PMCs and compare the services they cover and, more importantly, what they each DO NOT cover.

The vast majority of lawsuits against landlords involve wrongful eviction, security deposit disputes, and Fair Housing Violations.

Wires chewed, tenant gets electrocuted, or a fire then it's now a wrongful death, and whomever being sued.

The vast majority are wrong.

(and those numbers probably aren't wrong, but don't exist for many or most.) 

There are always negative people and there are people who think you just got lucky, well, they are not completely wrong.

"what am I doing wrong, and what should I be doing differently?" 

  " Inventory should increase and prices should dip" Ray,you were so wrong in that prediction because as everyone knows, the  interest rate dropping and many people's rush to buy housing so they could work remotely actually caused price increases in so many places.  

I now stock Charmin UltraStrong.Nothing wrong with bulk toilet paper per se.

Quote from @Aung Satt: currently I am using free skip tracer but It didn't work most of the numbers are all wrong or didn't connect at all.