OP, you really need to sit down with them and spell it out.
They will very rarely see you.
The children, work and cost of dog care, could mean it may only be annually.
They need to know this.
You will not be guilted.
You will not be made to feel bad.
You will not be using all annual leave to visit.
If they have an ounce of sense they will rent for 6 months to see how it goes.
I know of two sets of parents that did this, to the coast, bad roads, dismal in the winter.
Absolute disaster. Caused a falling out as none of their children were prepared to do 5 hours with young children. They had warned them, but were dismissed.
They bought a very small 3 bed so hosting was difficult.
It ended up being an expensive disaster that caused huge stress.
They moved back after 3 long years of complaining, bought a house much worse than what they had sold, lost a lot of money.
They had been begged to rent to try it out.
My friend had 3 under 5 and her parents spoiled those years with the selfish drama.
Their relationship never really recovered.
Spell it out.
Even write it down so they know how serious you are.
The lack of amenities, doctors, shops, the shite weather for months at a time.
Spell it out to them.
Make it very clear that you will not be up and down that road to them, your own responsibilities have to be your priority.