So - besides sharing that Idea to others that might have handymen in their units (Obviously it's good for Maintenance of your property, but they always say in real estate the unpredictable cost are where you lose money, so let's say I did not fix that Facet and my Entire lower bathroom Plumbing went to **** and I had to pay heck of a lot more to fix it to a real plumber then just a quick replacing of a faucet that is not working properly) I also wanted to Write this to hear everyone else's two cents on the Idea - what should I be afraid of?

But my job (exec at ad agency) is intense and unpredictable.

They are truly unpredictable.

What I'd say is you must be conscious of the dynamics of student housing [a different beast], the somewhat unpredictable CapEx during turnovers and several other factors unbeknownst to you guys now. 

Also consider that one of the major profit centers for mobile home parks is in raising rents regularly so you will have unpredictable expenses when it comes to projecting your lot rent moving forward. 

Personally I would not proceed with that building; way too much risk and an unpredictable return.

Can't afford an investment property and a primary residence at the same time.Our Long & Short Term Goals: We'd like to get into multifamily and primarily want cash flow over all other benefits of RE investing (we have a lot of catching up for retirement and current cash flow is unpredictable with commission only job).Experience: We're hard working and not afraid to talk to people, do research and make decisions.

Seriously though, global events are pushing our markets to strange places, it's all too unpredictable to tell when exactly it's going to begin. 

What you seem to be interested in is the concept of forming reserves for recurring yet unpredictable expenses. 

The property taxes in Oak Park are both crazy high and unpredictable.