Dual Timeline for Selling and Buying

Sell HDB to Buy HDB (With No Loan/HDB Loan)

Contra is the 1st thing to use for HDB loan or no loan in both sales and purchase. Contra is to do both selling and buying concurrently and complete together at the same date. Best case situation is to have 3 months extension of stay and early move in.

Sell HDB to Buy HDB (Involving Bank Loan)