I highly suggest you check out the abundance of resources at the Wolf Dunn (http://www.inetdesign.com/wolfdunn/) before considering a wolf hybrid as a "pet".
A wolf hybrid, even when properly socialized, rarely behaves like a dog. They cannot be allowed to roam free (must be kept in a large enclosure), cannot be chained, may urinate or bite out of fear, and are generally shy and timid animals. Most do not do well contained within a small home and some never become fully indoor trained.
In response to your question, I think it would be a potentially dangerous move to keep a wolf hybrid in an apartment. There is always the inherent risk of the wolfdog coming into contact with children or small animals; the prey instinct is much more easily triggered in hybrids and pures than in dogs. If your wolfdog does end up biting someone, current laws require euthanasia of the animal even before being tested for rabies (the rabies vaccine has not been approved in wolfdogs, although there is significant evidence that it is effective).
I would seriously reconsider your decision until you have become well-informed of the risks not only to yourself, but also your neighbors and the wolfdog community at large.
Good luck and well-wishes in your searching and decision-making.