Unless there is a reason she did not want to give him her POA? The prior was specific to a single real estate transaction - so I find the lack of one in place (DPOA or even a springing POA) considering her health issues quite remarkableAbsolutely! Public record shows that the couple previously used a Real Estate Power of Attorney (POA) document to conduct business in Indiana.
A power of attorney for real estate is a useful, but limited, legal document that allows you to give someone the authority to buy or sell real estate for you, or to conduct any other business concerning real estate that you own.
The real question here is why SM's POA was revoked or non-existent if they were subject to such an important, pending transaction.
It's evident that there was also no Durable Power of Attorney between SM and BM -- notwithstanding SM's prior health issues.
I think it's fair to say that for most longterm couples (married for 25+ years), this is a no brainer. MOO
JMO