Is that "Net" or "Net-Net" (NN) or is the investment Triple Net (NNN)? The term "Net Investment" means different things to different people. Sometimes the "Net Investment" is really a "Double-Net" investment and not actually a NNN or Triple Net investment. To determine if the real estate investment you are considering is NN or NNN, ask the listing broker if they have read the tenants lease(s). Or, better, read the lease yourself to determine what operating expense items the tenant is responsible for and those for which you, the owner, will be responsible. If the lease is well-drawn, the paragraph pertaining to who pays what operating expeneses should be easliy understood. If it is not clear, have your attorney read the lease before you invest.