68 Pa. Stat. § 323
The lien of the rent due to the landlord or landlords of any colliery or collieries within the counties of Schuylkill, Northumberland, Somerset, Carbon, Washington and Dauphin, the amount of which said landlord or landlords shall be entitled to receive out of the proceeds of the sale under a landlord's warrant, execution or other writ for the sale of the property liable to the distress of the landlord, except execution upon judgment obtained for such rent, which shall rank according to priority and be paid as other executions, shall be and the same is hereby restricted to one month's rent due, together with any fraction of a month's rent accruing immediately prior to the time of taking such property in execution or levy, under such landlord's warrant or other writ.
68 P.S. § 323