vacant house owned by bank or trust

[Aries Li]

I am looking into a couple of vacant houses in Sacramento. It turns out one is owned by a bank, the other is owned by a solo 401k trust. For the first one, I am afraid I can do nothing but wait for its listing on market, right?

For the second one, can I send a postcard to the trust? Well, probably the trust owner is not motivated to sell. Any idea?