Lock-in Period
Lock-in packages tie you down contractually to prevent you from switching banks for the duration of the contract. Lock-in periods typically vary from 1-3 years. The longer your lock-in period, the lower the interest rates.
If you are buying this property for investment and intend to sell it within the next 3-5 years, you should not take a Lock-In package because breaking the contract can result in stiff penalties.