I look forward to your Lawyers comments. The contracts are there for your protection, the money needs to be sent to the USA by the lawyer and both the lawyer for the Seller and your Lawyer will supervise the transfer of the house and the registration of the lease which are both straight forward.
This case has the wish for the Seller to require the money transferred abroad and he was explicit about this from the beginning and it is not a problem, only problem is the time issues to get you into your new home quickly which we will do our very best to get you in as soon as possible.