Can I know if we are Singaporean a family of 3 person, wants to come to windsor canada to stay so do we get PR card or Green Ca?

You should direct your question to a Canadian immigration attorney.

What type of repercussions can spouse and I expect after neighbors called police for DV?

You may want to see if you can get a copy of the police report. See what the recommended charges, if any are.

If I did not want to press charges for domestic violence and I was subpoenaed to testify anyways what happens if I don’t show?

The fact you did not want to press charges is not relevant to you showing up. If you fail to appear a warrant may be issued.

So can I get in troubl for cutting off some one on the freeway and they take a picture of my license plate

It is highly unlikely that anything will come of this.

Will i go to jail if i sent nudes to a person and now there friend is trying to blackmail me?

I agree, this is a scam. ignore them.

Call the police and ask to speak to the non-emergency officer about filing a police report. It will be forwarded to the DA who will decide whether...

Can a prosecutor press charges against someone? even if i say not too?

The DA does not need your permission to press formal charges.

How can I get my son and his family to move out of my House.?

Most likely you will need to go through the unlawful detainer (eviction) process. You may also seek a restraining order.

How do I evict my brother who has been living rent free from my house in California?

Most likely you will need to go through the unlawful detainer/eviction process.

How do I get my girlfriend out of my house now that the relationship is over?

Most likely you will need to go through the unlawful detainrt process.