Common Abbreviations of Property Purchase 

 OTP  - Option to Purchase
 S & P  - Sales and Purchase Agreement
 BSD  - Buyer's Stamp Duty
 ABSD  - Additional Buyer's Stamp Duty
 SSD  - Seller's Stamp Duty
 TOP  - Temporary Occupation Permit
 CSC  - Certificate of Completion
 LTV  - Loan to Value
 TDSR  - Total Debt Servicing Ratio
 MSR  - Mortgage Servicing Ratio
 Tenure  - Loan period of Years
 CCR  - Core Central Region of Singapore
 RCR  - Rest of Central Region Singapore
 OCR  - Outside Central Region Singapore
 AV  - Annual Value of Property
 BUC  - Building Under Construction
 MCST  - Management Corporation Strata Title
 Caveat  - A caveat is usually lodged by the purchaser to protect his/her interest soon after an option to purchase a property is exercised or a sale/purchase agreement is signed.

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