Very frustrating experience trying to get ONE pokestop in my entire community. Continual (incorrect imo) rejections

[cyndiepooh]

if you would rather not reveal your location, you mention these are apartments. communal spaces meant for socializing are definitely eligible, as you can see in this clarification:

@NianticTintino

Objects in or upon apartment blocks, gated communities, or their shared spaces may be eligible assuming they otherwise meet criteria and are intended to be accessed by a community, even if not everyone. Communal spaces have the potential to be eligible locations for Wayspots: for example, a mural in an entrance foyer, an outdoor exercise area, or a dedicated social space.

A prominent artistic display on the outside wall or in a shared space of an apartment or otherwise shared dwelling building, like the one pictured above, are eligible.

Shared community spaces in multi-family residences and apartments like those above can be eligible.

Whether they would be eligible to become a pokestop or gym would depend on the S2 cells, but this might give you an idea of something to look for.