Japan Employee (PR holder), 14M JPY salary. Full-loan for 50M mansion with potential US transfer

Hello, I am looking for advice regarding a mortgage in Japan. Here is my situation:

• Status: PR (Permanent Resident) holder.

• Employment: A global company in Japan (joined recently from the same industry ).

• Income: 13-14M JPY (Annual).

• Target: 40-50M JPY Mansion (Pre-owned or New).

• Goal: 100% full loan + closing costs (Zero down payment is my priority).

Specific Concerns:

1. Disclosure Strategy: Should I disclose this "potential" transfer to the banks (e.g., SMBC Trust Bank/Prestia, Sony Bank) during the application?

Some suggest staying silent, while others say Prestia’s global friendly policy.

1. Bank Choice: I am considering Sony Bank (low rates) and SMBC Prestia (global-friendly). Which one is more lenient toward "Zero down payment" while allowing me to maintain the loan as a non-resident after transferring to the US with a few years.