Liens. Whenever the Public Agency shall incur cost for the repair, alteration, improvement, vacating or closing, or for the removal or demolition of a dwelling, pursuant to an order of the Superior Court, the amount of such costs shall be a lien against the real property as to which such cost was incurred and such lien, including as part thereof upon allowance of the Public Agency's costs and necessary attorneys' fees, may be foreclosed upon by order of the Superior Court made pursuant to a petition filed for that purpose. Such lien shall be subordinate to mortgages of record made before the institution of proceedings under this chapter. Notice of said lien shall be filed and recorded with the register of deeds. If the dwelling is demolished by the Public Agency, it shall sell the materials of such dwelling and pay the proceeds of such sale over to the Superior Court, for distribution to such persons as the court shall find entitled thereto.
H.
Fines and penalties.
(1)
The Public Agency may establish a procedure for the issuance of warnings for violations of this chapter in its discretion, RSA 47:17, XVI; RSA 48-A:8, VI, but the failure of the Public Agency to issue a warning shall not preclude the Public Agency from proceeding under this chapter or under any other law or authority. The Public Agency is authorized to issue citations and to utilize all remedies and processes available under Chapter 6, Administrative Enforcement, of the City Code. The Public Agency may also, or exclusively, follow other existing avenues for administering and enforcing this chapter. See, e.g., RSA 31:39-d.
(2)
It is declared to be a violation of this chapter:
(a)