MMB...congratulations and condolences!
I do not design these buildings (except for remediation design), but I do investigate the failure of these buildings....so I know most of the things each party gets tagged with.
These buildings are done as cheaply as the developer can get by. They are built from a minimal set of plans with insufficient detail and contract administration is sometimes nonexistent...in short, don't depend on anyone else to protect you down the road. You will be on the hook for the entire statute of repose time for your state....if they get converted to condominiums in the future, your liability time might extend, depending on your state law.
A few items you need to be concerned about even though you might not get paid to check...
1. Any submittals sent to you must be critically reviewed. Don't be shy about rejecting those with insufficient detail. Stairs, rails, windows, cladding, strapping, sheathing, nails, nailing patterns, anchors,etc. REQUIRE that a valid Evaluation Report be submitted with all applicable materials and processes. This is not the time to be a nice guy.
2. Pay attention to how your items might affect the waterproofing of the walls and flatwork. Make sure you are not in the chain to design or approve the waterproofing...leave that to the architect, but call him on it if it doesn't get done or at least addressed. This is a high liability area that pulls everyone in...architect, engineers and contractor/subs. As an example, if you have balconies with railing, how will the railing be attached to the concrete or wood and how will that connection be waterproofed. Another example...how will the windows be installed and waterproofed (components and cladding...yes, you'll get sucked into that argument as well).
3. Pay attention to how waterproofing breaches affect your design. For example, did the architect provide flashing details at the windows to protect the sheathing (shear wall) and structure? If not, send him a letter telling him to do it. Another example is if you have stucco cladding.....if the stucco and lath are not installed properly and appropriate barriers installed behind the stucco, your fasteners, strapping, etc will corrode and lose competence.
4. Make sure that anything you specify to be installed in construction gets inspected....not by you, but by an independent inspector who will be paid for by someone else, but send immediate reports to you. This includes things such as strapping, anchors, nailing patterns, nail size, etc.
The list can go on and on...but you get the picture.
Good luck...cover your a$$ with plenty of correspondence on anything you don't like.