AZ Tax Lien - How does it work when there are multiple certificate buyers?

[William Petrisko]

I have been sending out marketing letters to find some wholesale deals (out of state owners.) I am in Phoenix/Maricopa County.

On the letters that come back as undeliverable, I research the assessor's office, treasurer's office, etc.

I have found a few properties that are behind in their taxes, and naturally, people have purchased tax liens. I see that in several cases, different year's taxes were bought by different buyers. (2010 and 2011 tax lien purchased by CP buyer 1234 and 2012 tax lien purchased by CP buyer 5678.)

How exactly does that work out for the buyers if the property needs to be foreclosed? Doesn't the same person have to own all the liens to purchase the property?

thanks
bill