Should condo association do special assessment for construction?

Our condo association board members are pushing to get a special assessment through a vote. Among their reasons why we need to vote "yes" is that the economy is recovering and the construction/repairs will cost more if we wait.  Are they allowed to just make that proclamation, to state it as fact? Because, of course, no one knows for sure when/if the economy will recover or even whether things will cost more if we wait. Does this open them up to any legal repercussions? Thank you in advance for your replies.