But, I might allow a portable raised bed like these:http://www.williams-sonoma.com/products/vegtrug-ra...http://www.homedepot.com/p/Keter-Easy-Grow-Elevate...That way, the patio or ground under them doesn't get wrecked or plowed up, etc.  

We didn't have an elevator or any type of grass or yard.  

It takes a lot to maintain a high rise, especially with things like multiple elevators, underground parking, and pools on the rooftops.

No elevator, 2 stories.  

I put it all in the ad - criteria and info about the property, including negatives (no dishwashers, no balconies, showers but no tubs, small parking lot and street parking, no elevator - but well maintained in good location, etc.), then went over it all before a showing.Kids are more destructive than pets.  

You can't refuse them because they're in a wheelchair but it's their responsibility to pay for the changes needed to bring the property up to speed with elevators, wheelchair ramps, bathroom handles etc.

No balconies, no laundry on-site, no dishwashers, no elevator (two stories).  

Then we were chatting by the elevators on the way out.

For condo investment you want low rise building no elevator/pool, door man, etc all these cost too much to maintain.

I wouldn't elevate it & probably just not interact with that neighbor.