purchasing mini warehouses

[Nick White]

 I am new to real estate and would greatly appreciate any advice given. Hopefully these pictures I am adding will give you all some insight to the deal. The first facility I have a P&L sheet and also the number of units that are occupied. The second facility I only have a P&L sheet, but drove by the property and looked at locks and I would say 80%-90% occupied. His asking price is 4,400,000 for both.

He also said he would sale first facility by itself. There is a kicker though... The land that the facility is sitting on was sold to a government agency and is leased back to him for 24 more years. He said he would rather owner finance I asked what his terms were and he basically wanted me to come back to him with an offer. Please Help!