In real estate law, an Instrument is a written legal document that formally expresses the rights, duties, or intentions of the parties involved. Instruments are used to create, modify, transfer, or terminate legal rights or interests.
Common real estate instruments include promissory notes, deeds of trust, mortgages, installment sales contracts, leases, and assignments. These documents are essential to establishing enforceable agreements and documenting ownership, financing, and use of real property.


