L. K. review about company Ameristar Roofing

Through our HOA'S "management company", we get bids from this 4 year old company. In my opinion, this company has too many 5 star reviews, since my comments are nearer the other 1 star review. Almost a week ago, 2 men showed up on the Smyrna property in an unmarked truck, 1 speaking no English. They proceeded to remove roof shingles to a small portion of the roof, but when I asked what the one guy was doing - he had an unsecured ladder leaning against shingled stair-well area, not safely stationed, tearing off shingles. I took photos, and went inside. Later I came out to find they'd left the property, and never returned. Approx. 2 days later, it began raining. Management company would only say, "they were there about a gutter issue"! Total baloney!!! The roof now has no shingles, still, and it's pouring rain again. Does Ameristar hire men with green cards? Doubtful, in my opinion, so why does any HOA BOARD agree to hire "any 4 year old company" connected to Associa, when a company in closer proximity to our Smyrna property offers a 10 year follow-up if any problems occur!? Again, in my opinion, there is a questionable issue between doing business with a new company offering no warranties, vs. one with a history, that does. Bell Roofing does - no relation!. My HOA board let's the management company do our bidding, in my opinion - literally & figuratively speaking! You be the judge. There should be a law.....but not in Georgia!