For an LLC in CO, it just takes a few minutes and $50.

Work very hard not to become a Real Estate Expert or you will find it extremely difficult to scale your business (you want to avoid creating a job).As a sidenote right now is a GREAT time of year to get started, the holidays are only "slow" for the wholesalers who stop marketing during this time of year.Whatever you do, try to focus on revenue activities instead of  complicated CRM's, cool looking business cards and setting up a LLC or S corp.You are about to go on a Great Adventure!

We will transfer the property to an llc.

You are going to have a series of successes and failures no matter when/how you start, so you might as well get started now. 

I've seen guys set up their LLC to mail to their attorney's office.

My wife and I had our lawyer and CPA in place ahead of our purchase ( as well as our LLC but that's another topic)  It seemed like it was one less thing on our mind when analyzing our deals.

If it is a corporation or LLC, it is more often than not an investor who pays cash.

Then I formed a LLC and hope to transfer the title and deed to the LLC.

Also, do any of you target LLC's?  

They also helped me set up my LLC and all of the tax elections as well.