You don't always need a full-blown rent strike to get the landlord to take appropriate action in providing building services or making repairs. Organizing a tenants' association has the advantage of putting the landlord on notice that you intend to act as a unified group in pursing your rights. A letter from a group of tenants that has taken this position is likely to be much more effective than individual letters. The landlord will realize that there is now the potential for a major legal problem that can greatly affect cash flow and profits. Sometimes this is enough to exact compliance. So if multiple tenants are affected by substandard condition, it can pay to organize even if you never actually pursue a rent strike.