How can I improve my translation?
Original translation is very unclear.  The original Enligsh style should not be directly translated into Chinese.
"Own" might be translated to 购入/购置.  And "a lot" should be translated to 其他豪华物资/资产 I guess?

I guess this is an advertisement?

It should be (sentences reordered and more advertisement-like) "住惯了公寓，想拥有属于自己的梦幻别墅？只需要您拥有护照，即可在菲律宾购入豪华别墅以及更多菲律宾资产".