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The fact that the payments are divided into 3 separate accounts is sufficient, even though the AZ attorney's suggestion was additional protection in the event of a dispute. However, in Texas unless the will or testament states otherwise, such inheritance is automatically divided by law in equal shares, so you have statutory protection and what the AZ attorney suggested is just stating what the Texas law states. I do not understand though why the Texas attorney would object to including this clause as it really does not change anything and you need to respond to the Texas attorney that you would be more comfortable if that statement were included in the agreement and since he is saying it is already that way, the clause should not be any problem to include for him.
As far as the escrow company, you need to ask the attorney in Texas to show you the documents showing that there is no agreement binding you to this one escrow company. If there is nothing that states this escrow company is the sole company and/or has exclusive rights, the Texas attorney is correct in that the company can be changed at any time. Again, if what the attorney in Texas is telling you, even though this clause is not necessary, it changes nothing and hurts nothing for him to include it and you need to tell him that in your response as well.
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