No
Yes, and it is very common if there is reasonable suspicion but not probable cause for entry without a warrant.
Certainly. You should patiently wait.
Yes. The police can search any items if they have a warrant. It does not matter that no one is there to receive the warrant. The police only have to leave a copy of the warrant at the residence.
only if they have a warrant.
Yes, they have the power to enter your home if they have probable cause of a crime, or they possess a valid warrant. It's common practice to wait until someone is home, but the law does not require it.
Technically they cant unless they have a search warrant not an arrest warrant.
10 days from the issuance of the warrant.
Then the warrant is no good and any evidence obtained would be inadmissible.
Yes, you are not necessarily required to be present.
No. They have to have a warrant for each living space.
With a Warrant, consent, or exigent circumstances
As often as they want until the warrant is taken care of.