As mentioned...CHECK WITH YOUR INSURANCE COMPANY.
Some allow an absence of 30 days as long as you can document
someone is checking every 72 hours. After 30 days you must have someone
living in the house.
Insurance will do everything NOT TO PAY so anyone that you name as a reference
will be checked, rechecked, and triple checked.
Canadians hate having to buy travel insurance to snowbird in the USA, but
look at the horror stories of those that did not buy any. Even the ones with insurance have the stories of insurance not wanting to pay.
Your house is worth looking after.