Thank you for the post. We will look into the viability of assisting with this request, however it does not seem like a bike rack on the sidewalk will solve this issue. It is likely that your tenants would prefer not storing their bicycles outside, as currently there are a number of sign posts at this location which can be used to affix bicycles to. Given the dimensions of the sidewalk here it isn't feasible for us to install enough bike racks to accommodate your needs. You may want to consider investing in a multi-bike rack that could be placed within your property's fence, however this would only be worthwhile if your tenants were willing to utilize outdoor bike storage.
I would also recommend considering utilizing bike hooks either in the hallway described or the individual units to hang the bicycles indoors and maximize space.