Hi there,
Inspect the property FIRST. This is a must. Write down everything that is wrong with it however small or trivial it may seem.
Inform the developer of any faults you see.
If you delay the developer (you haven't said who it is) could turn around and sue you for breach of contract.
Bryant Homes tried this on us so we had no alternative but to move in.
Have a read of our website.
mybryanthomeisshit.co.uk
GK