townhome association fraud

we as people in our association have reasonto believe that the president and treasurer have been scamming money from us, phony receipts for work not done bogus companies, also the presidents daughter handles the money coming in, they do not pay assoc fees, they have gone through our moneymarket, we have repeatedly asked for copies of checks from the bank and they will not give us them, they took out $55,000.00in 1 month. we have contacted our local police dept, and tey believe him, he owns his own remodeling business that is going down, he is using our $s to pay his bills who can we go to with this.....