Right of Subrogation
Surety steps into the shoes of the creditor
QUIATIMET
Agreement between creditor and surety
That creditor must proceed against the PD first then only can proceed against Surety
Ignorantia Juris non excusat
Ignorance of law is not an excuse
Quid pro que
Something in return
Consensus ad idem
Meeting of mind
Jus in rem
Right against the whole world
Jus in personam
Right against a person
Doctrine of privity of contract
Only parties to a contract can file a suit on contract
Doctrine of caveat emptor
Let the buyer beware
Rules of Estoppel
Stopped from denying