Землевладелец подписал акт согласования.

Because землевладелец is in the nominative case, which is the normal case for the subject of a sentence in Russian.

Here:

• землевладелец = the landowner / landholder
• подписал = signed
• акт согласования = approval/coordination act/document

So the basic structure is:

землевладелец + подписал + акт согласования
subject + verb + object

It is in the accusative, but for many inanimate masculine nouns, the accusative singular looks exactly the same as the nominative singular.

So:

• nominative: акт
• accusative: акт

That is normal.

Compare:

• Я вижу стол. = I see a table.
• Он подписал акт. = He signed the document/act.

Because акт is masculine singular inanimate, its accusative form does not change.

Согласования is in the genitive singular.

This is because Russian often uses the pattern:

noun + noun in the genitive

to express meanings like:

• of
• a type of
• a related official category

So:

• акт = act/document
• согласования = of approval / of coordination / of agreement

Together, акт согласования is a set phrase meaning something like approval document, coordination act, or act of approval/agreement, depending on context.

This is very common in formal and bureaucratic Russian.

Подписал is the perfective past form, which means the action is viewed as completed.

So землевладелец подписал акт согласования means the landowner signed it, as a finished event.

By contrast:

• подписывал = imperfective past
  This would suggest process, repetition, or an unspecified completed result:
  • was signing
  • used to sign
  • did sign (with emphasis on the fact/process, not completion)

In a simple statement about a completed official action, подписал is the natural choice.

The form подписал tells you several things:

• past tense
• masculine
• singular

In Russian past tense, the verb agrees with the subject in gender and number.

Compare:

• он подписал = he signed
• она подписала = she signed
• оно подписало = it signed
• они подписали = they signed

Since the subject is землевладелец, which is masculine singular, the verb is подписал.

The noun землевладелец is masculine because words ending in -ец are typically masculine.

Also, the verb confirms it:

• землевладелец подписал
  not
• землевладелец подписала

So both the noun pattern and the verb agreement show that it is masculine.

Yes. It is a compound word:

• земля = land, earth
• владелец = owner, holder

So землевладелец literally means something like land-owner.

This kind of compound formation is common in Russian, especially in formal or legal vocabulary.

A learner does not need to produce this word by parts every time, but recognizing земле-/землев- and владелец can make it easier to remember.

Yes, it sounds like official/documentary language.

In everyday speech, Russians may not use this phrase very often unless they are talking about:

• property
• land registration
• planning
• permits
• legal paperwork

So this sentence has a noticeably formal/administrative tone.

That is useful to remember: even if you know each word separately, the whole phrase may function like a technical term in context.

Russian does not have articles like the or a/an.

So:

• землевладелец can mean the landowner or a landowner
• акт can mean the document or a document

The exact meaning depends on context.

In official-style sentences like this, English often uses the:

• The landowner signed the approval document.

But Russian leaves that unstated unless context makes it clear.

Yes. Russian word order is more flexible than English because the cases show the grammatical roles.

The neutral order here is:

Землевладелец подписал акт согласования.

But you could also say:

• Акт согласования подписал землевладелец.
• Подписал землевладелец акт согласования.

These versions are possible, but the emphasis changes.

For example:

• starting with Акт согласования emphasizes the document
• starting with Подписал can sound more narrative or marked

For a learner, the original subject–verb–object order is the safest and most neutral choice.

The main stress is:

• землевладе́лец
• подписа́л
• акт
• согласова́ния

A rough pronunciation guide:

• землевладе́лец = zem-lee-vla-DYE-lets
• подписа́л = pat-pee-SAL
• акт = ahkt
• согласова́ния = sa-gla-sa-VA-nee-ya

A careful learner should especially remember that Russian stress is unpredictable and must usually be learned word by word.