Can I refuse to pay Va'ad Bayit fees in Israel?

No. Under the Condominiums Law 5729-1969, every apartment owner is legally obligated to contribute to building maintenance costs. Refusal to pay is not a legal option — it simply means the Va'ad Bayit will eventually sue you in Magistrates Court and obtain a judgment. If you believe the fee calculation is wrong or the Va'ad is mismanaging funds, the correct route is to challenge it at a general meeting or through the court, not to withhold payment.