Best Strategy Tax-wise for cashing out on a flip

[Nathan Schoenborn]

I am flipping a house in Milwaukee, WI and am trying to figure out the best strategy for cashing out.  From what I can gather, I have 3 options.  Sell the house right away, rent it for awhile then sell it, or do some type of lease option or rent to own.  Tax-wise, the immediate sale seems like it would be taxed the most.(but I would get the money back quicker)  Any benefits to do a rent to own over just renting?  How long should I hold it before selling?  For example purchases, I bought the house for $60k, rehab will be $25k and I plan on selling it around $120k.