VIC Sale of pet dog

[Gabriel1]

Hi, We have a 4yr old Harrier we rescued from a Rescue place Easter 2022. She's an escape artist & has the worst separation anxiety I've seen in a dog. She won't be left alone without doing anything within her means to try & get out. When we 1st left her alone inside she destroyed our living room blinds. Outside she tries to dig under the colorbond fencing. She's also moved pots that are so heavy we need a hand trolley to move them & removed other blockages so she can squeeze through a gap between one side of the fence & garage. We've tried everything. When we bought her she had a medical disclosure. She has spondylosis and bridging new bone growth in between her 2nd & 3rd lumbar vertebrae. There is also narrowing of the interverterbal disc space in that area. According to her paperwork, part of what the vet said was, "While she is currently moving around well we cannot guarantee that this will always be the case and her spine and spinal problems may occur in her future. In some cases this can improve with rest & anti-inflammatory medications but in advanced cases, especially with neurological impairment specialist surgery and treatment may be required. These may carry a cost." This form had to be signed. If we sell her, is it enough to write something such as I, as per the letter above, I blah blah, being the new owner acknowledge the above veterinarian medical information and understand and acknowledge the above health conditions as it's written on the original paperwork? Also, if we sell her can we be made responsible, in particular financially for any damage she may do to the new owners property?
Please, no flaming. This is upsetting for us. We love her & aside from the fact we are prisoners in our own home, unless we are going somewhere we can take her, she's a beautiful, intelligent, gentle dog. She does have medication for her anxiety but it doesn't stop her from escaping.