Industrial land , zoning advice

[Lucio Palanca]

My brother owns a 2 acre parcel of land zoned as industrial.  He has offered me to lease-purchase the property .  I want to build 6 duplexes in the area which will make me fall in a commercial real estate category for tax consideration.  Do I have to get the land titled to me before I build?  I plan to make a separate contract for the lease purchase agreement.