What are LOW maintenance & HIGH Free Cash Flowing Assets? Asking for a friend..

[AJ Wong]

Howdy BP, 

If you were an investor with $2-4M to invest (leveraged against another property at around 6.5%) and looking for the lowest energy and management input but the highest free cash flowing asset, what and where would it be? 

Of particular interest are: Multi-Family Complexes, Medical & Industrial Parks, Warehouse & Storage Facilities, RV & Mobile Home Parks, Sale and Triple NNN lease backs, Agricultural and Timber investments.