Does anyone have any sample of Earnest Deposit Form ?
How you call this form at bank ?

Offer to purchase.

Some banker will provide simple of format OTP.

If seller have 2 name on the property, does the "Offer to purchase form" must have 2 seller name and signature, or just one person represent will be enough.

Yes. Must be both of name.

one person can sign.

but to avoid dispute, i.e. which another may not agree to sell, better get both to sign.

normally both to sign. to avoid name drop out in loan later