You will need probate to address property in the deceased person's name. See an attorney.

You will probably need to domesticate this order. See an attorney in Colorado.

5 year look back period on gifts, hers to you. See an attorney in person for specific advice. Medicaid rules are very complicated.

Probably not. Pay someone to do a wellness check or use the police.

Sounds like your father may need a guardian. You may be better off where you are. Guardianships/conservatorships cause the court to be involved in...

Since you have your father's POA and your father owns the home, you can give yourself permission to enter. I would evict sister for bad behavior...

With a POA you have a duty to operate in the grantor of the POA's best interest. Are you using the POA to sell the property? Surely you can open an...

Moving to litigation. ...........................................

The debts don’t get paid. Family members are not responsible for decedents debt.

I would not “add” to the estate because you are not sure yet if those things constitute assets in the estate. Talk with your attorney.