And what are the requirements for those funds during that transition (i.e. do the funds have to be in a separate, isolated account - or escrow - similar to 1031 Exchange) when/if there is a time between the Sale of the first and Purchase of the replacement?

This book is your ultimate guide to tax-free retirement and estate planning using 1031 exchanges and DSTs.

By partner, I mean reduced design fees in exchange for a share of the profit.

Exchange of IDEAS concerning notes, creative financing, creative exchanging, wealth building, etc.2.

Currency exchange rates can also affect costs.

Another option if your profit is over that amount is to convert the property to a rental which would then qualify the property for investment use, Then do a 1031 exchange after a year.  

#1031 exchange the rest of the way What made you interested in investing in this type of deal?

When i first started funding folks that were selling to OZ investors about 2010 ( exchange rate favored OZ) and all the conversations I had with OZ investors .. the amount of public information in OZ was minuscule compared to the US..

A dozen 1031 exchanges that needed to be traced out?

FCI Exchange, LoanMLS.