(This can be seen from as early as kindergarten, where I took all of the cokes from my parents refrigerator and went door to door in the apartment complex selling them, 1st grade when I sold all of my school supplies in class so that I could buy a toy that I wanted, and even in high school when, due to the fact that I couldn't afford a paintball gun that I really wanted, I build a paintball club signup notebook complete with maps and rank structure and handed it to one of the most popular kids in school to get people to sign up for a small fee, would have worked if my mom hadn't found the notebook at home and got a little suspicious to say the least.)  

Mostly small multi-family but as big as 12 and 16 unit complexes. 

I met a guy this month that owns his own energy company who said he can audit your energy bills (he's done it for massive apartment complexes).

We charged extra if tenants used A/C units in their windows by the month during the summer.Large complexes adsorb the cost of heat,water, and factor that into rental costs. 

I would prefer to purchase a 3-8 unit complex.  

As these guys have pointed out, one of the biggest areas you'd need to know before buying any condominiums are the HOA's and it rules for renting, maintenance, etc.  

Hello,I'm looking to purchase a 16 unit apartment complex in Washington, D.C. 

Construction Administration is complex and every job has things that require different strategies.

Even navigating the complexities of property managers could be a deal killer for you.  

I have 6 apartment complexes in Northeast Ohio.