@Jose Ortiz, The 1031 process has to be managed by an unrelated 3rd party called the qualified intermediary. 

And 1031s are not applicable to selling your personal residence anyway.If you're selling a rental property, then 1031 may be a good move - again, depending on the numbers and dates.Husband-wife LLCs do not create a problem for 1031s.Your most important move now is to reach out to a qualified intermediary (QI) - specialists who handle 1031s.

Is there anything wrong with transferring title to my builder, having an intermediary hold proceeds from sales (of relinquished property) and then pay builder and then transfer title to me upon completion?

I like the Schlage Lever locks for most applications which can last nearly a year with one set of batteries.As a general rule, be careful or have local help on hand if using any of the WiFi based locks: WiFi-based locks use much more power than locks that interact with an intermediary hub or plug-in accessory, since those locks are most often lower energy Bluetooth at the lock and the hubs just stay plugged into the wall.  

., You should consult with your tax advisor in order to determine what tax consequences (write-offs/deductions) might be available due to the refinance.Refinancing immediately prior to a 1031 Exchange transaction can be risky, so be sure to consult with your tax advisor, legal advisor and Qualified Intermediary if you are thinking about refinancing just prior to a 1031 Exchange.

To top it off, Cozy acting as intermediary greatly increases the risk of successful reversals to the landlord.

"What is the difference between different intermediaries or how would you evaluate them assuming basic conditions are met"Outside of a QI Members Association, I don' think they have certs. 

Long term success for any intermediary in any field is obtained by bringing value to a client(s).  

I'd find a Qualified Intermediary now before you put things in motion to understand all the ins and outs. 

We are the Qualified Intermediary for 1031 Exchange we work nationally  and I am at the Fort Lauderdale office in Florida.Have a good day.