He is not threatening to sue, he is threatening to put a contractor's lien on the property. He does NOT have to sue to do that. I personally do not like the fact that contractors can do that without a court order in Indiana, but nevertheless, its industry/legal standard.
I have had contractor's liens put on my house multiple times because the contractor I hired did not pay his subcontractors. It was ALWAYS a major pain in the behind to resolve the issue.
In the first place they are not contractor's liens. They are known as "mechanic lien laws"!
Furthermore, they are not an "industry standard"! They are a universal legislative standard!
Also interesting to note is the contrast between you that dislikes them and the person that first drafted, introduced and promoted their passage into legislation - Maryland 1791 shortly thereafter to be adopted by all of the states - was also responsible for authoring another historic document:
The Declaration of Independence!
Laws which Jefferson wisely and correctly believed would promote the expansion and development of land freely accessible, yet hampered by a tight credit market and the high cost of material and supplies.
If it escapes you as to why these law that you so abhor were beneficial in the development of a nascent country, it is because it eased the risk to be taken by people employed to furnish the needed labor and material.
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ALSO, lets talk about these unpleasant experiences of yours with subcontractors placing mechanics liens on your property. You know those experiences that place you at odds with the third person to occupy the office of president (1801-1809).
Do you think I'm completely daft and do not vividly recall some years back when you falsely pronounced that under Indiana law subcontractors were not afforded lien rights?!
[SUP]When attempting to prevaricate it is always wise to possess a certain measure of memory. [/SUP]