I think you need to find out who owns/is responsible for the trees. If they are technically on your lot, and you own them, I would cut them myself, one by one. But if you don’t have the right to do that, then they must belong to the co-op and if this is the case, you can try to get the co-op to pay for damages which will most likely have to go to court. The easiest thing to do would be to move and solve all these problems at one time. But if you want or absolutely have to stay and cannot move, I would cut the trees myself. Like you said, to get someone else to cut them will be expensive.
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Personal experiences

Who ever owns the trees is responsible for removing branches etc that could be a hazard. If the park owns the trees, show them the bill. They are responsibly for paying, whether they will or not is another story but you could do what you can and even take them to small claims court if you have the energy.

A certified arborist should inspect the trees to determine if there aer any additional hazard branches in danger of falling. White pines do tend to have brittle branches and if they are white pines planted near a parking area, that was a poor choice of species.

Pine needle mulch is one of the most desired and expensive mulches to purchase. You don’t need a lawn anyway — let the needles lay you have maintenance free surface to enjoy that doesn’t use any fossil fuels to maintain.

Don’t just cut them all down. We share the planet with plants and animals and these valuable trees and serving an important role in the environment. There are ways to learn to live with them.

If you have to cut them, replace them with something else that won’t have the brittle branches.
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but mostly, they use a thick and long strap (leather maybe),gripped by two hands, to belt around the palm tree. the of course you have hooks? ( i don’t know how you call it) on your shoes or boots to help you to climb.
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