Good real estate reading from Neighbor Sam.
From Washington Post - "Appraisers subjective view can kill a deal despite accord by buyer and seller" The listing agent and sometimes with help from the buyers agent can thoroughly vet an appraiser prior to it being done. If they aren't familiar with the neighborhood, request someone that is.
"Paid off your mortgage? Congratulations, but there are still some things that you need to do". In Arizona, go to "treasurer.maricopa.gov" to see your tax bill and who is on it.
And "Why suing a home contractor may not be as beneficial as you think". Look into the Registrar of Contractors here in Arizona for information on prospective companies. It is as messy and time consuming as the article relates so do the extra effort up front.