Richard J Kinch wrote:
3)Other than feel and the sliding chair test, is there a better way to
quickly check the floor for uneven tiles?

(1) Lippage spec. Straightedge anywhere does not exceed some specified
gap.

(2) Do not let this same contractor in your house. Document the failure,
fire him, get the job done right, sue him for the difference in cost.

In a thread of reasonable advice, this last part doesn't fit. The
contractor is willing to make it right, so what's the problem? Hauling
in the lawyers is guaranteed to make everyone lose except the lawyers.

R