Can you borrow on a house that is already paid off?

[Christopher Kinnaman]

I am new to the real estate game. I am possibly going to be getting a lump sum of cash this month which I then want to use to purchase a house. I do know for a fact that the amount of money I will be getting is not enough to purchase a house and make renovations. The question that I have is can I purchase the house and pay for it in full and then turn around and borrow against it so I can make the repairs needed before I then resell the house? I am looking at possibly purchasing a house for about $70,000 and possibly trying to take out a loan against the house for about $30,000 so I can make repairs which would put me all in at $100,000. Another important key factor is that I do not have the greatest credit so I don't know if I would have to go with a hard money lender or an angel investor or what not. Any insight that somebody might have with this would be beneficial. if I'm coming across as sounding stupid right now, I apologize but I really do not know the ins and outs.