It's philosophically hard to let the guy walk, but we need to know when we're fighting a battle we're unlikely to win. 

Then file with Small claims court and fight it.

I don't do this because the co-signers tend to fight when I try to hold them responsible.

Why are they even fighting it ? 

@Genny Li emotional support animals are supported by federal law which means every state must accept them.National Association of Residential Property Managers is trying to fight the emotional support animal issue.

Is there some way I can fight this appraisal without having to go back to the same person who appraised it?

Can they fight a void sale even after the deed is issued after 3 years?

Watch for developments as the new combined organization transforms to give us better service and will continue to fight for the needs of landlords.http://www.waapt.org/

@François DesCotesI have been attending dallas county sheriff sale for a while still consider myself as a beginner...few thoughts wanted to share here.Most propably the HOA went for sale under constable sale not sheriff...I know its the same auction same place but usually different guy announce it in dallas they start first thing before the start with the ones behind taxes.Most propably whoever bought the HOA is responsible for the mortgage also...I have read before sometimes the HOA is superior to 1st mortgage but not sure if that applies here in TX.tax sale is good for rentals in my openion because of the redemption period 6months-2 years...keep in mind even if the redemption right passed most of the title companies wont give full insurance up to 2 years since the date the deed recorded...because it was bought at the auction and they are questioning if somebody decided to fight the sale (all parties were notified, proper notices sent...etc)Having said that buying/getting the redemption right from the former owners would make you free of all mentioned difficulties and you can sell immediatly no wait!

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