NAR/CAR ethics stipulate 'Seller is Agent' disclosure in writing on the MLS etc at time of listing because even if Seller is not the Listing Agent, licensed seller/owner may expect and/or receive compensation (ie, gift, referral fee, portion of listing agent's compensation, etc).Thus licensed seller is inherently not strictly limited to being a principal in the transaction, so would have had to disclose seller is licensed agent. 

Correction, NAR :-) faux pas. 

https://www.har.com/content/newsroom/Houston Real Estate Highlights in October Single-family home sales increased 4.7 percent year-over-year, with 6,716 units sold;Days on Market (DOM) for single-family homes was 57 versus 61 a year earlier;Total property sales rose 6.0 percent, with 8,127 units sold;Total dollar volume jumped 9.3 percent to $2.3 billion;The single-family home median price climbed 3.6 percent to $234,653, an October high;The single-family home average price also achieved an October record, rising 3.5 percent to $294,500;Single-family homes months of inventory reached a 3.9-months supply, up fractionally from 3.7 months last October, but below the national supply of 4.4 months reported by NAR;Townhome/condominium sales dropped 2.9 percent, with the average price up 4.9 percent to $206,838 and the median price down 2.2 percent at $152,900;Leases of single-family homes rose 7.3 percent with the average rent down 1.1 percent to $1,754;Volume of townhome/condominium leases fell 6.8 percent with the average rent up 1.2 percent to $1,550.

I don't think my costs are nearly as much as Russell said but if i had to guess it's still easily over a grand for me when you add in the NAR dues, mls fees, continuing education and every little thing they nickle and dime out of you like lockboxes, lockbox set up fees not to mention monthly servicing fees just for the stupid box.

Single-family home sales fell 5.8 percent year-over-year, with 6,548 units sold;Days on Market (DOM) for single-family homes was 52 days;Total property sales declined 4.4 percent, with 7,842 units sold;Total dollar volume was down 3.5 percent to $2.2 billion;The single-family home median price edged up 0.2 percent to $232,500, a September high;The single-family home average price also achieved a September record, rising 1.7 percent to $295,765;Single-family homes months of inventory was at a 4.0-months supply, up fractionally from 3.9 months last September and slightly below the national supply of 4.3 months reported by NAR;Townhome/condominium sales fell 6.1 percent, with the average price down 6.6 percent to $191,967 and the median price unchanged at $159,450;Leases of single-family homes dropped 35.4 percent with the average rent down 4.0 percent to $1,812;Volume of townhome/condominium leases plunged 44.5 percent with the average rent down 1.0 percent to $1,584.https://www.har.com/content/newsroom?

Mosley Flint and NAR can offer various recommendations for your state.

Maybe a small company not tied to NAR would work for your wife because then you’re not forced to join NAR at $500-600/year.

It was the fourth consecutive month that prices had risen less than 5 percent on a yearly basis, NAR noted.https://www.cnbc.com/2018/09/20/existing-home-sales-unchanged-in-august.html

Realtor Code of Ethics does too - but that only applies if you're a NAR member.Once you cross state lines, I don't know whether that changes the MLS Rules part, or even if your MS has that rule.If you were not a licensed agent, I'd say direct contact with the seller would be the right step to take next.The other thing I'd do would be to instruct your agent to deal ONLY with the broker of that office. 

I don't know the costs in your state, they may vary, but I pay something like $1200/year to be an agent (license, NAR membership, MLS dues, E&O insurance, etc).I don't make a lot as an agent, but it helps me A LOT to facilitate my investing.