The people that start in REI with massive commercial properties with no history in business or real estate....I don't get it.

The next day an unrepresented retail buyer called about my Listing and wanted me to write up the deal!

The rate and terms were the same that they were offering at the retail level except that they waived a few fees.

We primarily fix and flip retail.

Do I give the seller the option of my price and retail price?

Unless youre selling massive quantities of properties you probably wont get your money back.

@Jeremy Brown  good points.. but real estate is so regional.. like in your region  Sacramento Placer county etc.. the agent upon opening escrow would have gotten a preliminary title report back from teh title company within 3 to 5 days.. once that is received it would clearly state at the bottom of the report if anyone other than the title owner had an interest they would need to proof themselves up and sign. so in other parts of the country ( and I find this particularly frustrating) especially attorney closing states.. they will not pull title until way deep into the transactions. ( reason they have to pay an abstractor up front to pull title ) and if the deal fails they don't want to be on the hook for the abstractor fee so you don't find out that you have an issue with title many times very close to closing date and this leads to massive frustrations on the buyers side.. ( at least it has for me in these instances. )But your correct the listing agent probably should have or did know that the seller was married and should have gone down those thought process's.. usually your in the home during the listing signup but i know now with docusign this may not be the case as much as it used to be.. as RE is moving away from much of the belly to belly aspects we enjoyed in the olden days 

I could be wrong, but it seems like you'd be paying retail for this property.

For example, apartments might be doing great while retail is suffering, or single-family homes might be taking off while office is stagnant, etc. 

If you have a massive list of LLCs, however, I recommend hiring a freelancers on Upwork.