Tax sale/deed Help

[Kenneth Lee]

So i bought a house that didn't sell at auction about a month ago. I already did the title search. It's a 60 to 90 waiting period before I get the deed. It killing me to not being able to work on the house. (A guy I know said DO NOT invest any money in the house till you get the deed.) Because if i do the deed will come back messed up. With my luck that's what will happen. So my question is.... Is there any way to get around the 60 to 90 day period. Or since i have the Bidding Purchase contract that should protect me if the deed comes back wrong? Right? 

Also would like to ask can I REFI the house with a tax deed? Plan to BRRR. I am in IL! 

FIrst property for me and plan on using the money from the refi to invest in a apartment complex.   

Sorry for all the questions. Newbie so any and all help and tips are appreciated. Tired to look on my own but couldn't find much! Thank you a lot in advanced.!