The only reason for a delay on purchases is either if you require a mortgage or if the property isn't completed otherwise it should be a process that takes weeks as apposed to months so this doesn't seem right if you agreed the sale back in March
The only other delays can be if somebody previously purchased the property and there are queries on he transfer or community fees to be cleared
I known of people that completed in less than one month on this site, buying a property via Polaris
Not sure who your agent is and if you have a lawyer working for you but they should be able to explain the delays which are NOT normal