@Brian Erickson The main benefit of having a license is access to the MLS for the purpose of doing comps (comparable sales).

If the taxpayer sends the improvements affidavit to the investor by certified mail, and it has been more than 40 business days since the affidavit was sent, with no response by the investor, then the taxpayer will be allowed to redeem anyway.Shelby County will note their files if an investor claims to be entitled to payment for improvements.

I have access to different wholesellers in the area.

Argus would be your best bet for software but can be expensive if you don't already have access. 

It will help improve your understanding of how to not only purchase properties at tax lien/deed sales but how to get them ready for sale and maximize your profits. 

Do you get keys/access to the property after you win the bid, or are you just looking in from the outside?

Are there any Indianapolis area agents offering unlicensed assistant MLS access to a new investor such as myself?

Opening it up to have access to the backyard.Does this need a permit?

If so, how do I access them?

What I suggest is getting a job for a few years that allows you to save some money and improve your credit.