There's a construction guideline in TARION website to define if the quality of the house is acceptable or not which I guess is minimum requirement and is very in favor to the builder; and normally a house won't be 100% completed when you close the deal. You can put those unfinished items in your PDI list and 30 days list, even 1 years list. The builder has some time limit to get those items finished upon TARION's requirement.
If you don't have a strong evidence to prove the house is a very bad shape, or somewhere not built as you ordered, and just saying 'i won't close because it has quality issue', you might end up losing your deposit and some lawsuit from the builder

(e.g. the house price dropped dramatically, you want to walk away from the house, even give up your deposit, the builder still can sue you for the amount of money that for price you agreed to pay minus today's market price for their "loss")