How would you take this? ( Semi long, possibly not controversial )

Before I begin: if this fits another room better, let me know and I’ll remove this post. I feel as if this might be a controversial topic though which is why I’m posting it here.

So, the backstory: I’ve had my neighbor for the past 10 years probably, since I was relatively young. He had one child, was divorced so his child stayed with the mom the majority of the time. This made his American Bulldog his baby. I hardly ever saw the dog except for when he was taking him for walks, or else he was inside, in the air conditioning. He kept the house and yard in good condition and we didn’t really talk to him much but I remember a few times where the dog got out and he came over, an absolute mess because he was missing and he told us the dog was his baby and he couldn’t lose him.

About six or seven years ago, he got remarried and had two more kids, the most recent is still a baby. We’ve noticed that since the second child, the yard is not kept up ( we’re not bothered by that, this is more about the dog ). The dog also stays outside, all the time. He’s super, super skinny and constantly dirty.

We tore down and rebuilt the fence we share with them, and got to know the dog really well. He’s an absolute sweetheart and is very cautious with his human siblings and with my dogs as well. Lately, the dog was escaping quite a bit and there were a few times I had to bring him back because he does look like a dangerous dog. I’ve seen the inside of their house and it’s like a hoarders house. I’m particularly worried that they are neglecting the dog, and possibly the kids. I never see them outside, but they have the dog chained up, with no water or shelter and they’re gone for 14+ hours a day. I’m an animal lover and I’ve been thinking about leaving a note for them.

In this note, I plan on saying that I’ve noticed they seem to be going through some difficult times ( I hardly see the father anymore, his truck hasn’t left the parking spot in weeks ) and if they need any babysitting or dog sitting, or maybe would like me to walk the dog, I would be happy to. I’m worried this might come off as judging or harsh, but in reality my heart just hurts for the dog and the kids.

What are your thoughts? How would you take this, or respond ?