I have a tenant renting my old house who had a contract to purchase the home and recently bailed on the purchase contract. While she lived at the house she placed mortar in the joints of approximately 200sq. of sand bed pavers. To make a long story short, I need concrete evidence that what she did is catastrophic to the patio and that she is liable for suit of replacing the area of which is one tier of a three tier patio which is no longer in production and is comprised of four different sizes from four different pallets @$375/ea. So basically make her pay dearly for what she did since it is irreplaceable and for bailing on a good faith purchase contract that she lived in for several months and must be taken up, disposed of and relaid. BTW I'm ICPI certified but obviously a letter from me citing this is biased.