shall be free from violations of law recorded by the city agency having jurisdiction, which constitute fire hazards or conditions dangerous or detrimental to life or health, or which affect the maintenance of required services. The DHCR will consider housing accommodations proposed for relocation which are not presently subject to rent regulation, provided the owner submits a contractual agreement that places the tenant in a substantially similar housing accommodation at no additional rent for a period of six years, unless the tenant requests a shorter lease period in writing.