Alabama - Judical Redemption period & loss of redemption rights

[William Watt]

Property in question - 2ac wooded lot, no improvements;

Property intended use - mobile home rental property

I understand the judicial redemption rights, adverse possession, and the tax payers termination of redemption rights.   My Questions are - 

a) If I have not carried out all of the recommended items for adverse possession over 3 years for quieting the title, but we have exceeded the 3 years on a tax deed, has the taxpayers rights of redemption truly elapsed??

b) If indeed the tax payers rights of redemption has lapsed, what is to prevent me from clearing the property and installing one or more septic systems.

c) If I purchase a property from the state and the state of Alabama had it in their possession for 9 years, has the taxpayers redemption rights been exceeded.