Hi JustNormal,
It sounds like you have various options and contacts to try thru this paranormal team which is good, and it's great that they provide you with such support with being close by.
But keep in mind that an investigation team like this is after raw evidence, their intent is to get what they can of the experience first, finding a solution comes second. Like Lord Storm said, people who are in thrill seeking mode for the experience (and this can be as simple as having the mindset of wanting to urge the 'whatever' to perform, show what it can do, make contact, push the boat out etc, hence the séances and evp games), can over time amp the situation as their energy and intent is lent to it. This is fine if you are ok with that, it's fine if it's over a short period of time with someone involved who has the skill to knuckle/deal with it on the head after, but if not then...
I'm not sure for how long they have been involved with your case? but I'd say the sooner you and they stop
fannying around for evidence and start trying solutions the better

You describe that you have been physically pushed at times which has led to injuries. I would say while this is defiantly out of order and shows the true nature of the entity/energy, it's probably about as much as it can do. This entity appears to have a lot of energy skill, it could well be a spirit who passed with such knowledge or has mastered it in spirit. Even is if this is the case, they are still limited in how they can interact with us physically, all spirits are. This physical existence/plane is not their ideal environment, they can only interfere so much. You have to know that you are 100 times stronger in every way than it is.
I would also be willing to bet from experience, that there's a source of energy available somewhere in your home or land that's providing the right conditions for such activity. Things like underground springs, ley lines, wells/channels, near by rivers or lakes. These can all amp or provide energy to a knowledgeable spirit.
Energy is all a spirit is and has, ability is down knowledge in what it can do with energy, that may be to manifest in some way or use it to move things. With high level activity cases I look for sources of energy and shield/seal them. (This is about working on a spiritual level with energy and spirits, not physically or via ritual/spells) It's like turing a tap off or putting water on the fire. It makes cleansing and entity removal/collection easier.
I also wanted to say something about the EVP's, I can understand that these must be disturbing to listen to

esp if it's foul language coming through. This entity obviously thinks it belongs where it does and doesn't wish to co-exist. It's unusual for an entity to be heard but displays or anger, frustration, profanities is not uncommon from spirits, esp troubled, or low level coneheads.........What I wasn't clear about with the evp's was if you are getting the same voice in these recordings or different ones? The thing with EVP in active areas is it can be hard to know if it's current or residual, both can be picked up, plus other spirits can be drawn in.
Also if I can refer back to your first post, it did cross my mind that this entity may be distressed, confused and acting out of fear, from something else or something that happened on this land, such as a fire. The get out and pushing may be it reliving it's distress.

have the team or you looked into the history of the land/building at all?
Like Lord Storm said there's a few people here that can work remotely and specialise in different areas of this sort of thing. Just so you know if the other avenues don't work out.
I hope this gets dealt with swiftly and remember, 90% is psychological, you're 100 times stronger and better in everyway than it is, but don't bargain if things go missing again, that's as good as submitting to it's games and giving it motive to play more. Instead, just focus on asking for assistance from a higher level, be it god, spirit guides, angels, whatever it is for you