43 Pa. Stat. § 221
All moneys that may be due or hereafter become due for labor and services rendered by any miner or mechanic, servant girl at hotels, boarding houses, restaurants, or in private families, or any other servant and helper in and about said houses of entertainment and private families, porter, hostler or any other person employed in and about livery stables or hotels, laundryman or washer woman, seamster or steamstress employed by merchant tailors or by any other person, milliner, dressmaker, clothier, shirtmaker or clerk employed in stores or elsewhere, hand laborer, including farm laborer or any other kind of laborer, printer, apprentice, and all other tradesmen hired for wages or salary from any person or persons, chartered company, joint-stock company, limited partnership or other partnership, either as owner, lessee, contractor or under-owner whether at so much per diem or otherwise, for any period not exceeding six months preceding the sale or transfer of the real or personal property, works, mines, manufactories or business or other property connected therewith in carrying on the sale of said person or persons, chartered company, joint-stock company, limited partnership or other partnership, by execution or otherwise, on account of the death or insolvency of such employer or employers, shall be a lien upon said real or personal property, mine, manufactory, business or other property in and about, or used in carrying on said business or in connection therewith, to the extent of the interest of such employer or employers in said property, and shall be preferred and first paid out of the proceeds of the sale of such real and personal property, mine, manufactory, business or other property as aforesaid: Provided however, That the claim thus preferred shall not exceed two hundred dollars; and Provided further, That this act shall not be so construed as to impair contracts existing, or liens of record vested prior to its passage: And provided further, That no such claim shall be a lien upon any real estate, unless the same be filed in the prothonotary's office of the county in which such real estate is situated, within three months after the same becomes due and owing, in the same manner as mechanics's liens are now filed.
43 P.S. § 221