I want to file quiet title action pro se (myself). 

You can have her on title if you like but don’t put her on the mortgage.  

- What are the steps after seller has signed the document (via DocuSign or whatever service you use) - do you go to title company and open escrow?

You would have to appraise the property and transfer the title out of an IRA to your own name.

Aside from appraisal, and legal, Title- Application Fee? 

So the guy I'm learning to wholesale from told me to call around my area for a title company and ask if they are investor friendly and if they do double closings, etc.

Meaning your down payment would be $16,500, closing costs estimated at $10,000 (4500 lender, 1500 HOI, 500 taxes, and 3500 title).

Seems like a quit claim deed from the daughter would be enough to pay a title company to do a title search.

Lately, it's same day...in the past was when there was a delay but I think they've upped their game when the transfers stay inside Chase.   

You seem to be on top of things other than that make sure that the county has assessed the property properly and be prepared to protest after closing if they have not, title should let you know if there are any liens, if occupied get copies of the leases and/ or tenant estoppel certificates.