Can I sue for an error on an appraisal that ended up costing us?

[Ian Loonce]

I was refinancing a property. The appraisal noted that we didn't have proper egress and that it was a safety issue. She noted this for a reduced price in her appraisal and also for selling. I checked with the city and fire department and we did have proper egress. Because she noted this safety issue, the lender would not give us a loan until it was fixed. We missed the deadline for our locked in rate and it was raised 1.5%. Which totals about 32 grand over 30 years. Can we sue the appraiser/appraisal company for this.