I was interested this place:https://www.zillow.com/homedetails/12140-Garden-Grove-Cir-UN...It looks decent, but then I noticed the condo fee of  $469/mo.   

I asked what they paid for it and they said $4,000 - I asked what DD did you do and they said the county tax value was $6,000 so I was getting a deal… I asked him if he was a Gardener as maybe grow some veggies on it but other than that it’s useless and no one will buy it

Your options are to appeal the appraisal, make it agricultural (community garden or farm crops), raise bees or anythng like that to get the taxes down.

in the SF peninsula and down to Cupertino there was a builder who built about 30k homes in the 50s and 60s  called Eickler these were modern heat in the floor tons of glass interior walk ways with gardens in them etc etc.. very unique ..

Or a garden shed, art studio, etc...Just a thought... 

We're able to afford the place as a 2 flat, but still pondering legal options for monetizing the garden unit, if any exist. 

Upkeep and maintenance, landscaping, garden and fencing in the backyard.

So it's a long road before you have any income coming in from that garden and there is absolutely no guarantee it will ever even get upzoned. 

Weeds were 3 feet high, fences and railings falling over, wood rotting out, roof with moss peeling back the roof to allow in water. 

-They handle all aspects of property management, allowing you to enjoy a steady income with no stress.Some Top Areas to Invest in Orlando:-Winter Park-Windermere-Winter Garden-East Orlando-OviedoEach of these areas offers a blend of amenities, a desirable neighborhood atmosphere, and property appreciation potential, making them prime locations for passive income investments.