How do you get around a rule by the tenants in a condo?

"...A rule by the tenants" can have many interpretations.

For example, are the foxes -- tenants -- running the hen house? Or, are there too many rented units? Are tenants making rules?

Whatever the complaint, take it to the board in writing and show that there is a violation of the governing documents. Ask for time on the next board meeting agenda to explain your complaint. The board is then chartered to correct the issue, if there is a violation.