The above is just a short version of what I believe the process to be. Of course, I am not a lawyer and you should not rely on my opinion. Check with an attorney for factual legal answers.
A mechanic's lien, mortgage or HOA lien are legal and could cause you to lose your home. They have different "periods of solvency". I would also contact a Real Estate Attorney in Texas as they would be the person to assist the Buyer though the legal process.
Your situation regarding delinquent homeowners dues, aka "HOA fees", potentially involves a legal review based on the facts.
However, I would suggest you review the following Oct 2009 post provided by http://www.trulia.com/profile/gracemorioka/ below on this subject:
"California's laws do not allow any homeowners association to file what is called a "super lien" that survives a foreclosure action. Super liens ..."