REI investing for almost 20 years, owning a wealth management company for 22 years, suffice it to say there has been a lot go data/spreadsheeting/tax analysis/meeting with my team go into this overall decision to sell the entire portfolio at once.  

GEG gave investors inspection and appraisal reports. 

Call up a few PM companies and see if they will tell you who they use.

I would look for a professional company like Rentwerx.Here's an eviction resource: https://guides.sll.texas.gov/landlord-tenant-law/about-evict...

And i found launch control but the minimum is $500 a month, but they use cross-referencing data across sources to find the most accurate contact information by using a person's name and address to find their phone number, real address and email by accessing public databases, phone number directories, credit reports, utility bils, public tax records, and social media profiles. this is waaay expensive for me as a beginner. what do you suggest or if anyone has any suggestion I'd greatly appreciate it.??

Certainly partnering with companies that have consistent replacement properties available makes sense if the properties meet your investment guidelines.  

A report by a neighboring tenant is admissible in court. 

Check out competitors of this company.

Alternatively, you could consider seller financing, which could provide you with a steady income stream while selling the property.As a real estate investor, realtor, and owner of a construction company near Texas A&M (College Station/Bryan,) I'm happy to help in any way I can.

I have been using comps from the MLS but as the company grows, I dont have that advantage in other states.