That is if you are the first group to collect the letter and your solicitor can complete the legal mortgage in few days and you wake up early to queue up for 收樓 while you are not picky to ask for 執漏 as well as no decoration it is not impossible to move in in late March. Otherwise... ;p
A recommendation for 執漏 really don't be too picky for small defects if you are going to refurbish the flat. Otherwise you may need to wait for long time and even more執 more 漏 (I have this exp . It would be even more efficient to ask your 裝修 to fix it!
However also note that the developer may not indemnify for some defects after 裝修. Be careful to ensure no structural defects like window/toilet/kitchen are ok before passing to 裝修.