If I were an home insurance company, the only way I would insure any home there is if the zoning requires ALL brush to be removed away to a point of many feet from any building, and, that all houses be roofed with tile roofs.
In this day, there are machines that can be used to grind that brush on site.
Many are on the market. 4 way tilt and they can go nearly right straight up a hill.
https://www.youtube.com/watch?v=YNk_cAhz1SU
Small job? Then hire one of these. They put them on mini excavators also.
https://www.youtube.com/watch?v=gohoYp3TPfU