Страховщик получил подтверждающие документы от выгодоприобретателя.

Получил is:

• past tense
• masculine
• singular
• perfective

It agrees with страховщик, which is a masculine singular noun.

So:

• страховщик получил = the insurer received
• if the subject were feminine, it would be получила
• if it were plural, it would be получили

Also, получил is from the perfective verb получить, which presents the action as completed: the documents were received.

Yes, but the meaning would change.

• получил = received, a completed event
• получал = was receiving / used to receive / received repeatedly, depending on context

In a business or legal sentence like this, Russian usually uses получил because it reports a finished fact: the insurer got the documents.

So this sentence sounds like a formal statement of completion, which is very natural in this context.

It is in the accusative plural, because it is the direct object of получил.

However, for inanimate plural nouns, the accusative looks exactly like the nominative. So:

• nominative: подтверждающие документы
• accusative: подтверждающие документы

That is why the form does not visibly change here.

It is a participle used like an adjective.

More specifically, it is the present active participle of подтверждать (to confirm / to support). In this phrase, it means something like:

• supporting
• confirming
• documentary proof

So подтверждающие документы is a very common formal phrase meaning supporting documents or documents confirming something.

It agrees with документы in:

• number: plural
• case: accusative
• gender: plural has no gender distinction

These mean different things.

• подтверждающие документы = documents that confirm something
• подтвержденные документы = documents that have been confirmed

So in this sentence, the insurer received documents that serve as proof. That is why подтверждающие is correct.

This distinction is very useful:

• активное значение: the documents do the confirming
• пассивное значение: the documents themselves were confirmed

After от (from), Russian normally uses the genitive case.

So:

• от выгодоприобретателя = from the beneficiary

Here:

• выгодоприобретатель = nominative
• выгодоприобретателя = genitive singular

This phrase shows the source from which the insurer received the documents.

It is a formal legal/insurance term meaning beneficiary.

It is not a casual everyday word, but it is common in:

• insurance
• contracts
• legal documents
• banking/financial language

The word is built from the idea of someone who acquires a benefit/profit. You do not need to break it apart every time, but knowing that it is a technical term helps.

In insurance Russian, выгодоприобретатель is the person or entity entitled to receive the benefit/payment.

No. Страховщик means the insurer, the company or party that provides the insurance.

This is easy to confuse with other insurance words, for example:

• страховщик = insurer
• страхователь = policyholder / insured party in the contractual sense
• застрахованное лицо = insured person
• выгодоприобретатель = beneficiary

So in your sentence, the one receiving the documents is the insurer, not the customer.

No, Russian word order is relatively flexible.

The neutral order here is:

• Страховщик получил подтверждающие документы от выгодоприобретателя.

This is a natural, straightforward statement: subject + verb + object + source phrase

But Russian can move parts around for emphasis, for example:

• От выгодоприобретателя страховщик получил подтверждающие документы.
  Emphasis on from the beneficiary
• Подтверждающие документы страховщик получил от выгодоприобретателя.
  Emphasis on the documents

The basic meaning stays the same, but the focus changes.

Russian has no articles.

So a noun like страховщик can mean:

• the insurer
• an insurer

and документы can mean:

• the documents
• documents
• some documents

The exact meaning depends on context. In formal business/legal translation, English often uses the because the context usually refers to specific parties and specific documents.

Yes, very much so.

Several features make it sound formal/administrative:

• страховщик
• выгодоприобретатель
• подтверждающие документы

This is the kind of sentence you would expect in:

• an insurance file
• a contract
• an official letter
• a claims document

In everyday speech, people might use simpler wording, but in legal or insurance Russian this sentence sounds completely natural.