The linked article was written by E. A. "Sandy" Dixon, Jr. Esquire on Mechanic's Lien Law for the Pennsylvania Bar Association Quarterly; Sandy is a member of the Realtor Lawyer Council of Suburban West Realtors Association.
It may give you too much information, but it is very useful.
Pennsylvania Bar Association Article
Hope this helps clarify the situation. At our last meeting, it was stated that some adjustments are being made to the law to rectify the situation created, that Title Insurance is not being issued covering Machanics Liens, and these are not being opposed by the proponents of the original bill. As more infomration becomes available I will post updates.
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Thanks for the update, Nick.
You may want to consider including this update also in the Real Estate Law and perhaps even the Politics And Real Estate