Landlords are seldom required by the Court to pay moving expenses for a tenant. You describe several issues with your apartment. Although, size is not a Warranty of Habitability claim I encourage you to review the Colo Warranty of Habitability. The 2019 Colo Legislature significantly strengthened the Warranty of Habitability in favor of tenants. But, you still have to provide notice and opportunity to cure to perfect your defense. This somewhat complex issue and I encourage you to seek a free case assessment if you want to claim a breach of the Warranty of Hability.