Buying redemption reights from taxpayer in AL?

[Roger Gelpey]

I have a few certificates on vacant/abandoned houses and as soon as I start maintaining the grass I start getting calls requesting to buy the property. As a cert holder I don't "own" the parcel but I assume I could purchase the redemption rights assuming I could find the taxpayer. Is this a good strategy? If you have done this do you have any advice? Thank you!