When an Investor is funding a Flip, whom should go on the title?

[J.J Spratling]

I have an investor who may be willing to provide 100% of the capital for a flip project, to purchase it and for construction. He will not be involved in the project directly.

 Someone else would also be doing the bidding. In this type of case, who usually goes on the title? Is there some type of contract out there I could be suggested to look up, for the capital to act as a loan but not require rates obviously, as he's providing the capital for a percentage of the profits in return.  I heard something about using liens? 

What is the best way to set this up, to make the investor feel secure. 

If someone else is doing the bidding, how would the investor get to be on the title, he would have to show up at escrow Im assuming? 

Thanks