Can a board member get all the contracts

In our HOA we have a VP on the board that gets all the contracts. I just found out that he just got a contract to do all the outside work for $184,000 per year. I asked how can this happen and I was told that he had the lowest bid. I said I am sure he did since he knew what all the other bids were. I don't think this year we had any other bids and I think they just gave him all the contract work. I found out for year 2009 we had to pay $14,000 to the lawn company to pay him off because he had a 3 year contract with us. Once they paid off him then they gave all the contract work to the VP. I feel this is a conflict of interest and should not be allowed. Most of the people that live in here know nothing about this. Is there anything I can do ? Thank you