(f) “Grant of Assignment” shall allow the Buyer (“Assignor”) to grant unto the Assignee the exclusive and irrevocable assignment of Assignors interest, equitable or legal, of the Option to Purchase Real Estate agreement, hereto through the “Assignment of Option to Purchase” (Exhibit B).

Next you could go to your bank and get a irrevocable letter of credit . 

and maintain some level of control of designation of trustee as bene of your irrevocable trust : )

Both ...We have a $2M Umbrella, and hold our prop's in a single LLCAs for non-revocable (irrevocable) Trust's -- I don't think I'd use one for Rentals.

When it comes to trusts, I believe a successful investor should have revocable trusts, IRREVOCABLE trusts, and at least a GST.

All contracts, options, or other devices not based upon a substantial consideration, or that are otherwise employed to permit an unlicensed person to sell, lease, or let real estate, the beneficial title to which has not, in good faith, passed to such party for a substantial consideration, are hereby declared void and ineffective in all cases, suits, or proceedings had or taken under this chapter; however, this section shall not apply to irrevocable gifts, to unconditional contracts to purchase, or to options based upon a substantial consideration actually paid and not subject to any agreements to return or right of return reserved.And BTW, "most" wholesalers do Not buy the property if they can't find a buyer because they simply don't have the funds to do so.

This is typically done with an irrevocable letter of direction from the new Buyer to the Buyer's attorney or Escrow agent.This is all 100% legal, unless there is a provision in the agreement of purchase and sale that prohibits assignment. 

Think separate contracts, bank accounts, water bills, etc LLC is not a document that lives in your desk drawer ..it must be an active legal formBottom line:What you don’t own ..can’t be taken away from you. many ways to accomplish that : land trust, irrevocable trust, combination of trust and LLC, definitelly not a DIY.Not an attorney

Regarding the trust account, would property transferred to a revocable (or irrevocable) trust still show up on my credit report as a mortgage liability if I'm the trustee?

I'm not an attorney, and have limited knowledge, but it is my understanding that Lenders can do what you are requesting, but it will depend on whether it was set up as a Revocable or Irrevocable Trust and who the Trustee is now.