term used in legal disputes

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Note added at 16 hrs (2018-08-05 14:45:19 GMT)
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acknowledging a settlement, in favor of, in the sum of

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Note added at 16 hrs (2018-08-05 14:49:30 GMT)
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English Collins Dictionary - English synonyms & Thesaurus:
settlement
1 adjustment, agreement, arrangement, completion, conclusion, confirmation, disposition, establishment, resolution, termination, working out
2 clearance, clearing, defrayal, discharge, liquidation, payment, satisfaction

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Note added at 22 hrs (2018-08-05 20:48:14 GMT)
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saldobalance, credit, sale, settlement, bank balance
saldo SM
1. [de cuenta] → balance
comprobé el saldo de mi cuenta → I checked my account balance
saldo acreedor → credit balance
saldo activo → active balance
saldo a favor → credit balance
saldo anterior → balance brought forward
saldo comercial → trade balance
saldo deudor → debit balance
saldo en contra → debit balance, adverse balance
saldo final → final balance
saldo negativo → debit balance, adverse balance
saldo pasivo → debit balance
saldo positivo → credit balance
saldo vencido → balance due
2. (= liquidación) → sale
precio de saldo → sale price
un abrigo que compré en los saldos → a coat I bought in the sales
3. (= pago) → settlement, payment
4. [de móvil] → credit
no me queda saldo en el móvil → I haven't any credit left on my mobile
5. (= resultado final) la manifestación acabó con un saldo de 20 personas heridas → a total of 20 people were injured in the demonstration
el saldo oficial es de 28 muertos → the official toll is 28 dead
https://es.thefreedictionary.com/saldo

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Note added at 22 hrs (2018-08-05 20:55:14 GMT)
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I think it can be translated settlement because of the context: "a favor de". But you may be right, I was making an assumption about the context.

"a favor de esta" could be referring to the person who owns the account... his/her credit.
Or it could be referring to the account itself... acknowledging a credit balance (in the account).