TNR program?

I'm looking for help with a feral cat colony. $60/ cat is not reasonable when there at least 12 cats over there. My neighbor has dementia; he went into a home. The cats were in his backyard but now there are several tiny kittens in the front. From what I'm told there is at one other mom & another pregnant female in the back. So pretty soon it'll be even more cats to remove. The house is currently unoccupied. Another neighbor is also trying to find resources but this stuff is expensive.