Seeking legal advice.

I work at a tiny "MSP" (Managed service provider) - We do computer administration and repairs for companies that don't want to hire their own staff- so I do IT for approx. 25 different companies in my area, and hundreds more residential customers. When I started the company had two owners/partners, and one has since retired. The remaining owner is the one doing what I'm about to describe.

I have caught ownership here many, MANY times in the past inflating my outgoing bills by more than 200%. Example: I billed 1 hour labor to "Company X". Invoice went out with 2+ hours of labor billed. They've been editing my completed service tickets without my knowledge and inflating bills to customers. Most more than double-charged. I caught them in the act with proof and threatened if they ever did it again I'd walk. I now log and have document proof of what I billed to who, and some of our best customers (The ones who I trust and value personally and who trust me) know to call me if anything looks "off" about ANY invoice they receive before they pay it. After my ticket gets billed, I go back and examine it before the mail can even arrive at a customer's mailbox. If it's wrong, I raise hell.

NOW/Today September 2026- I took a long vacation. Get back from vacation and over the next few weeks I discover that while I was out, the owner of my company massively overcharged every customer I'd normally have worked on, (again, this place is a tiny, TINY shop) including billing customers for work that never occurred. On these service tickets/Invoices there are actual, prove-able lies. I doubt customers have read/received these invoices yet, but I expect that when they do we will have many angry phone calls.

NOW My boss IS shit at this job. Obviously being shit at your job is not a crime, and being incompetent is not illegal, but lying is. Fraud is. Many of us have incompetent managers, bosses, etc, hopefully yours aren't crooks like mine.

Today's discovery: 8.75 hours of labor (over 3 different tickets in 3 weeks) billed to a good customer we've serviced for over a decade. $1155+tax and every single word on every single invoice an outright lie. I asked about the tickets and again, a stream of lies and anger.

(He doesn't throw me out/fire me because I'm holding the place together)

What in the world is the right thing to do? Is there a proper "person" to speak to, LEGALLY- in a situation like this?!

Extremely bummed about this situation, because I otherwise like my job and am good at it. Have many customers I've helped here, and could almost certainly start a business of my own doing this and get the customers I'd need to survive on- but otherwise there isn't other work like this in my area.