Often the timing of recordation or the date the obligation accrued is paramount.Without jurisdictional info and a title report (including all taxes, judgments, perhaps more), nobody here can give you an answer.

Code Section 40-10-74 says: If the mortgage or other instrument creating a lien under which a party seeks to redeem is duly recorded at the time of said tax sale, the said party shall, in addition to the time in this title specified, have the right to redeem said real estate sold, or any portion thereof covered by his mortgage or lien, at any time within one year from the date of written notice from the purchaser of his purchase of said lands at tax sale, served upon such party, and notice served upon either the original mortgagees or lienholders or their transferee of record, or their heirs, personal representatives or assigns shall be sufficient notice.

@Elizabeth Wilson  its far to early in the process.. having done this for many years before it became ILLEGAL in our state the only way we bought them was within 48 hours of the auction and usually the day before.you need big time cash and big time risk and you need to have in at title company that will give you a date down on the phone.. if your in a title abstract state that takes for ever to run title I don't see this as any kind of viable.

I've been trying to find information online and through these forums but most just recommend going through a title agency. 

If you don’t know off the top of your head (you really should make notes of key dates for end of due diligence and closing).

Have a paper stating that you are adding him to the lease dated xyz btw xxx and you  and that the new tenants has review and acceot all responsibility and have everyone sign it.

@Buddy Holmes Yes, from my understanding, 1/2 of the property would receive a stepped-up basis and the depreciation schedule would restart at the new stepped-up basis, whereas the other 1/2 would remain on the current depreciation schedule.For example, if the FMV of the property on the date of the deceased party passed was $300,000, then the 1/2 inherited would receive a stepped-up basis of $150,000, erasing any previous depreciation.

I would also spell out the remaining lease term and that you expect the monthly lease payment of X dollars on the due date of every month.

It has mustard yellow paint on the inside, original hardwood, and a very out of date kitchen. 

There are a lot of videos out there online where you can see the power of it.