yes, buyer agrees to give extension to me for current flat.
so when i go and purchase (buyer), can i even consider to give extension to seller?
i am concerned on the time-frame for both sides.
ps for all the noobs questions.
Your buyer has given you 3 months extension of stay and that mean you likely to move out by early Oct, but you get your money
If you manage to find a replacement flat and exercise OTP by mid May, the resale completion would by end Jul/early Aug. With this timeline, you can't afford to give the seller of replacement flat an extension of more than a month to be on the safe side, cause you may need one month reno to complete by end Sep and move in. With this constraint, you should only look out for sellers who don't need extension.
If you are not able to find a replacement flat by end Jun, it will be more difficult to find one that would allow you to move in earlier.
In my case I had to have over my flat on 2 Jan 2019 after Buyer exercised the option on 15 Oct 2018.
In buying, I had to exercise OTP on the spot on 23 Nov 2018 and completion was on 25 Jan 2019. Meaning I will be homeless from 2 Jan.
Fortunately, I manage to find a vacant flat which the Seller allowed me to take over the flat before mid Dec 2018 and I moved in without reno on 31 Dec 2018.