La propuesta de resolución incluye el sobreseimiento.

Not exactly. In Spain, propuesta de resolución is a fairly fixed legal/administrative expression.

It usually means something like:

• proposed decision
• draft ruling
• recommendation for the final decision

So it is more specific than a general proposal. It refers to a document or formal recommendation that sets out what decision should be adopted.

Spanish often uses the pattern noun + de + noun to specify what kind of thing something is.

So:

• propuesta de resolución = proposal for a decision/ruling

This structure is very common in formal Spanish.
Resolución propuesta would sound more like proposed resolution/decision, focusing on the resolution itself rather than on the proposal. In legal-administrative Spanish, propuesta de resolución is the standard set phrase.

Sobreseimiento is a legal term. In many contexts, especially criminal procedure, it refers to:

• dismissal of the case
• termination of proceedings
• discontinuance

The exact English equivalent depends on the legal system and context, but it generally means that the proceedings are being brought to an end without moving forward in the usual way.

It is a technical word, not something you hear much in everyday conversation.

Here el sobreseimiento refers to a specific legal measure included in the proposed decision.

Spanish often uses the definite article where English might not, especially with abstract or formal/legal nouns. So even if English says something like includes dismissal, Spanish naturally says incluye el sobreseimiento when it means the dismissal measure/order contained in that proposal.

Because the subject is La propuesta:

• La propuesta = singular
• incluye = singular verb form

The phrase de resolución does not change the subject. It only gives more information about propuesta.

So the structure is:

• La propuesta = subject
• incluye = verb
• el sobreseimiento = direct object

Because sobreseimiento is a thing, not a person.

The personal a is used before specific human direct objects, and sometimes pets or personified beings. But here the direct object is a legal concept:

• incluye el sobreseimiento

So no a is needed.

Yes. It sounds clearly legal or administrative.

Words like:

• propuesta de resolución
• sobreseimiento

belong to a formal register. In ordinary everyday Spanish, people would normally use simpler wording unless they were specifically talking about legal paperwork.

Yes, but the original order is the most neutral and natural for a formal statement:

• La propuesta de resolución incluye el sobreseimiento.

You could also say something like:

• El sobreseimiento está incluido en la propuesta de resolución.

That version puts more focus on el sobreseimiento. The meaning is similar, but the original sounds more like standard legal wording.

Usually no. This is a common false friend issue.

In legal or administrative Spanish, resolución often means:

• decision
• ruling
• determination
• formal order

It does not usually mean resolution in the everyday English sense of firm decision or New Year’s resolution.

Not always. Legal vocabulary often depends on the system and context.

Possible translations include:

• dismissal
• termination of proceedings
• discontinuance
• stay in some contexts, though that is not always the best choice

So even if the general meaning is clear, the best English version depends on what kind of case it is and how that legal institution works in the relevant jurisdiction.