And, you can't assign a financing agreement held by a proposed lender, nor make a commitment to do so in blank, the seller must consent directly with the borrower.

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.  

Probably 90% of the time or more, the answer is no.   .... unless of course you take forum postings on BP as qualified tax and financial advice, in which case there is near unanimous consent that everybody and their dog should have a Solo 401(k).

Consequently, as part of our application, we have applicants sign both landlord and employer reference consents which we can present to current / past landlords or employers authorizing them to discuss the applicants tenancy or employment with them.Our consent forms also identity the information we will seek, so the applicant is fully informed.

Within 6 days of sending a fully ratified purchase contract to your lender (3 days if you consent to electronic receipt of disclosures), you should receive this document from your lender.In the upper right corner, it has a "rate lock" portion that is legally binding.Hardcore rate shopping at the preapproval stage, and/or when you're just on the phone, encourages dishonest behavior, because folks will quote unrealistically low to keep you on the phone, as OP just learned. 

or should I also have an affidavit signed and notarized stating he or she can not sell to anyone else without my consent?

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You could with consent of the owner, actually having them lease it to them.

I.R.S. designated 501 ( C ) 3 non profit tax exempt entities like us, solve your problem every day through Charitable Revocable Trust.  

I was never informed of this until recently and I don't know how he could have sold my property without my consent but it may have been another scam he could have planned on the potential buyer.Ironically, I got the news of McNutt's arrest from another management company I hired after McNutt and terminated also within a short period of time because they were going out of business without telling me ahead of time.