I do it more for the treatments / inspections than faith in the actual bond.

Just something to consider when moving forward.As a side note we also found termites during our inspection and negotiated treatment.

So he will carry errors and omissions insurance, liability, workers comp, business auto ins....he will perhaps have an office worker answering phones, and a CPA, a lawyer.

When material errors are made (not "opinion" errors, think more like factual errors), that's the most common success story.I'll usually let my clients double down if they feel really strongly about it.

A perimeter termite treatment on an SFR in Georgia is going to run $400 to $1500 depending on size and complexity.

Regarding pest control, I will pay for the first treatment.

For your investment properties, do you pay for a new termite bond if it isn't already in place?  

I just received a quote from the termite company and it includes a $1,000+ one-time up front installation fee for some sort of device that prevents them on an ongoing basis, and then like a $200-ish per quarter charge on each property for ongoing treatment.~$200 per quarter per property sounds about right to me for termite control, but I'm having a really hard time wrapping my head around a $7,000+ up front cost to install their system at all of them.

This is just a bad way to start off a tenant/landlord relationship, so try to resolve it amicably first, especially since it was your procedural error that caused this issue.

Higher leverage is faster property acquisition, lower cash flow, more risk and less room for error.