In the same vein you can't exchange real property with other financial instruments such as stocks or bonds. 

Is the land contract always the preferred instrument for the seller?

At what point does an LLC or other instrument get formed?  

A Warranty Deed is an instrument used to convey title to real property from the Owner (Grantor) to the Buyer (Grantee).  

@Jared Skov I don't borrow against my 401K, instead I use my 401K for what it is, a strategic investment instrument.

@Steve S.Florida has a similar law: 481.221 Seals; (6) No registered architect shall affix her or his signature or seal to any final construction document or instrument of service which includes drawings, plans, specifications, or architectural documents which were not prepared by her or him or under her or his responsible supervising control or by another registered architect and reviewed, approved, or modified and adopted by her or him as her or his own work according to rules adopted by the board.

While I find it instrumental in my own investments, I never rely solely on it.

Given nature loans for rental properties and the high possibility of Assignment of Rent clauses in both the note and the security instrument. 

Loan Origination = is the process from Borrower application to funding/capitalizing the loan and perfecting the security instrument.  

I also worked with a great realtor who was instrumental in closing the deal, so feel free to shoot me a message and I'll send you all his info.