How long does it take until a sibling has to go to court if he/she doesn't sign the waiver and consent form?

While 20 days is typically the time to object, you are probably discussing a Florida Probate case and the homeowner's homestead. Once the probate...

Do I need to set up an estate for my father?

Given what you stated, you might need to do a probate to have the items split between the two of you. If she is doing that, then a probate would...

Can a release or waiver of entitlement to a portion of another's estate be set aside after probate?

Your cousin should talk with a lawyer to review his options.

In Florida, that would be presumed to be unreasonable. That being said, it depends on what is being done and how much money there is. Also, the...

While not impossible, it is not likely that you will be successful as evidenced by what has happened. It appears the judge is considering your...

Can my sister leave a house that's not hers to someone?

If she owns the home, she can make the decision, but cannot leave a home she doesn't own to someone else

If I have a last will dated 2008 should I update it .

The date does not cause a problem. If there was a change in your life, you may want to change the will or your objectives or financial...

In Florida a homestead is exempt. If she didn't live there and had another homestead it is not an exempt asset and could effect her eligibility

Talk to a lawyer about a summary administration (an abbreviated probate)

Florida doesn't have income taxes. Generally life insurance is estate and income tax free but it is something you will need to review with a lawyer...