Though it will give you a baseline for future improvements.I would start with the easiest analysis - the paper audit of your bill which will let you know if you actually consumed more power or if there was an increase in rent.  

Every gift of time, money or goods that helps another person generates its own immeasurable ROI.

This seems to be the cheapest and easiest way out. 

It is the gift that keeps on giving.  

We have just purchased a 3 unit property using someone else's money as the down payment in return for a certain % back on their investment and split in the equity while we manage the property ect.My question is, what is the easiest way to find investors to get more deals like my example above?

It will be the cheapest/easiest loan you'll ever get.  

Phillip I. since multi family can be such a hot commodity right now and the easiest to get financing on I would do a shot gun approach and utilize all avenues available to make that happen.  

I cover the details about the contract and we break it up by interjecting moments when I pull things out of the move-in gift bag or when my husband demonstrates how things work in the home.

No gift money allowed. 

The easiest way is to save cash flow for the next purchase but if your not cash flowing....I guess reduce your expenses or get another job to save what you need.