I'm seeing what looks like crabgrass or possibly dallisgrass in all 4 photos.

Spray Roundup on it and re-plant real grass.

is the grass in the first pic in clumps?
or does it have have runners?

Seems like it's growing without runners, but I think the main reason it is in clumps is because the grass had not been watered in so long it "died" and then when it began getting water what you see is the grass coming back. It's definitely not "crabgrass" or "dallisgrass" as the first responder said, it's some type of grass used in Hawaii because my neighbour has this in their yard and so do my parents. No one seems to know what it is though. It's thick and unattractive

The grass in #4 has thinner blades and an irrigation guy told me it was bermuda because of the seed heads it had.

I decided to kill it all with HDX grass and weed killer. Was curious what type of grasses they were to see what was doing well in my yard.