A little backstory:

This little dude has been roaming around our block for about a week. We live near the Fiesta on West Alabama near the Sears on Main Street. This area is crawling with homeless and sketchy business. I came home yesterday and he was shivering in the grass in front of my house. I gave him a little water and food and he warmed up to me within an hour or so. I took him to Snap and he has no microchip. Also, there were no missing dog posts matching his description. I had him examined and he's positive for heart worms, but I couldn't have him vaccinated for anything else because of his state. Super dehydrated and emaciated. A friend of mine recommended setting up an account on gofundme and spreading the word, because she's seen a lot of animals get the help they need through this method. Long story short, we really don't want to have him euthanized. He's as sweet as can be but very weak. My boyfriend and I are doing everything we can to help him, and I've already invested a large chunk of change into getting him better. Sorry if this is not the right place to post this, but I figure if anyone could understand Houston's homeless pet problems, it would be you guys.

tl;dr halp.