I'm looking at a single level, modest home marketing to the retirement age community in the $180,000 to $220,000 range.  

I'm a do-it-yourself home rehabber on properties I've owned that started as a hobby because I couldn't afford to hire a contractor.I don't think of myself as R/E Investor (more of a tradesman working like a hobby), wanting to learn more about the investor strategies to build up my retirement fund.Cheers :-)

I also have a sister, retired, who had a career in new home sales here in the San Diego area. 

Its a great place to learn how to build a cash flow way of life to retire in comfort! 

My long term goal is to have cash flow and a "hobby" for retirement.

I dont know where your building is located at specifically, however am not sure how the wine/art ordeal would help your space unless there is a large following in  your community and something already established -- IE if you google First Friday or Final Friday and add Wichita, KS to the search term - you'll see what they do here (there's a pretty large following on these events - there would be no value in anyone trying to advertise their building for lease to the people who attend such things....that's here, might be different where you're located though)Do you have more details to provide -- what town is the building in, whats around it, what is the demographic makeup, are you in a bedroom community to a larger city nearby - out on an island all by yourself with nothing else around, retirement community, any industry, professionals nearby?  

Our goal is for early retirement in 15 years :) Therefore we invest in long term positions. 

Obviously no bank is offering that type of interest return so my money would not grow as fast but I also won't have to deal with potential unforeseen issues properties bring.Initially, I thought, I'll buy at least 2 properties a year, sit on them for as long as I can, hopefully make a nice monthly net return and eventually sell them off when I'm ready to retire.

Our goal is to build a portfolio or as I say an "empire" of passive income to provide the cash flow needed for early retire in 15 years, wo we do work on furthering our careers.

Our ultimate goal is to use our real estate cash flow to fund early retirement in 15 years.