Personal note/reference: I met Michael and @Bill Labrecque  about a month ago, and while I have not worked with them - they seem very educated in the New Britain market (in addition to all of the content that Michael produces on BP). 

I've only done a few here and there so far so I'm not sure how many leads they've actually produced.  

Getting all your tenants up to market will take time and will likely produce some turnover, though.You'll need more local data to see what it would take to push the value up. 

I have heard everywhere that you base value on the income the property produces, not what other similar sized buildings go for .

Leasing is usually slow in the winter months and picks up in the Spring and Fall.Lastly, do not forget to include a healthy marketing budget.

We have a income producing multi-use NC2 building that is almost paid off & have been thinking of selling(we also live in part-time).  

Being able to produce them is a great selling point to support your asking priice. 

My appetite for REI is driven by the below mentioned traits that produce hefty rewards:LeverageCash flowAppreciation (forced, inflation and demand)Tax benefitsEquity building

Then buy an income producing property.

Once you are somewhat  or in complete agreement start learning more in earnest about where and what properties would produce good results and be honest with yourselves, learn to look at it as a business.