agreement of sale + lease + deed = sufficient to convey RP
whereas
bill of sale convey PP

LEASE

A lease of real property is:
A. A freehold estate;
B. An estate for years;    
C. An exculpatory estate;
D. A defeasible estate.

SIMPLE

A lease is an agreement for the use of real property by one other than the owner. A lease exists for a specific period of time; hence, an estate for years. ANS B