I just noticed that the new addendum has a clause which increases maintenance fees from a maximum of 5% of expenses to a minimum of 15% with no maximum limit set.

This would enable UDC to basically charge whatever they like over the stated minimum of 15% - This could be 20% or it could be 200% or more like 1500% - the sky's the limit.

This is actually not allowed under the law to not set a ceiling.