That is cool!  I like the idea of the threat of it.  However, in Ohio an abstractor cannot actually file a mechanic's lien for their services.  A mechanic's lien can only be filed by a person who performs work or furnishes material in furtherance of an improvement to the property by virtue of a contract with the owner, lessee, or an authorized agent of the owner or lessee.

First problem... the abstract would not be considered an improvement.  Second... our contract is not with the owner, lessee, or an agent of the owner or lessee. 

It would be nice if we could file some type of lien, although it would probably really upset the homeowner. 

Best,
Robert A. Franco
SOURCE OF TITLE