Is our Miami condo association special assessment accurate?

The condo association board voted on a $2500.00 assessment for repairs on our 16 unit building due and payable in 30 days with late fees and penalities imposed if they do not receive money on time.  The property management company says the repairs are mandatory.

How would we know that without a professional report? Also, the special assessment is double of what the limit is on the condo association bylaws.  Miami, FL