> Probably need some form of tax amnesty system where counties can seize these properties, sell them off for any amount and wipe tax bill clean. However, that's process would be ripe for corruption which thinking about TX, I'm surprised they haven't allowed that.

In Washington state, tax foreclosure has a minimum bid of the taxes due and if there is no bid, the county takes title. Then there are procedures to sell those 'tax title' properties, my county says typically the minimum price is 80% of assessed value ... which would typically be more than the tax debt, so maybe better to participate in the tax foreclosure auction.

I don't know that the county has a duty to maintain tax title lands. Vacant land is probably going to get emergency maintenance by a government agency of last resort anyway.