92 y/o spouse dx'd w/dementia did not even appoint me for a medical POA; he put his sister on the form at the VA hospital and she was astounded when I told her this because she and he do not get along at all. I have been advised that I need a DPOA and an elder lawyer and I have no clue about where/how to do this..
To find a reliable lawyer, see if the hospital or perhaps friends with experience of dementia can recommend one with a good track record. Do NOT rely on advertising or glossy claims! Word of mouth from people you trust is the best recommendation.
What do you need medical DPOA for? Generally, it is useful but not essential unless you are having to cope with people who might dispute your authority to act on your husband's behalf. As his wife, you are next-of-kin and would routinely be consulted when decisions need to be made; so before you go about formalising your position on that score, do check that you need to.
You should consult a lawyer anyway, though, because there will be all sorts of administrative tasks to be undertaken on your husband's account and if you haven't already looked into these then you will need expert advice.
But don't panic: nothing terrible will happen to your husband in the meanwhile just because you haven't got DPOA. You have time to get things straight. Best of luck, please update.
If your husband is in the early stages of dementia, he might still be capable of signing a DPOA if he chooses. I hope you don't need to go to the extent of applying for guardianship.
Has he always been this arbitrary?
When my wife suffered a sudden dementia I found an attorney, who got me an emergency, 60 day POA with doctors statements and an attorney ad litem for my wife and then after the 60 days I was given a permanent guardianship and yes there is expense, in the nature of $6000+.
I hope this helps
When your husband is in a good mood, and being agreeable, bring up the topic calmly and mention that his doctors, etc, have said that's it's best that his wife be his DPOA so there's no delay in care waiting to contact his sister (or whatever reason you think may most appeal to him).
At 92 yrs. with dementia, it may become moot since this diagnosis is terminal.
IT IS NOT ILLEGAL for a dementia patient who has not been declared incompetent by a court to appoint DPOA and mecial POA.
Please read the Aging Care Legal expert on this topic, here https://www.agingcare.com/articles/elder-cant-sign-will-trust-power-of-attorney-153521.htm