Move real estate database to WordPress

Hi guys,
I’m a first time poster and id like to start of by saying I am excited to be here! Im trying to find an answer for a problem im having, this has mainly to do with a lack of knowledge from my side seeing im quite the beginner at wordpress development, so i’d be thankful for any answers or advice I might be getting from you guys, the community. Anyways, my problem 🙂 I have an issue regarding a site ive recently start to work on. THis is happening within the Real Homes template (found on themeforest). I’ve done all the styling and page prepping for the guy im doing this for but they already had a website, with about 200+ properties that contain pictures etc and translations (norwegian and spanish). Now my question is how do I get the MLS, the software they use to put properties with one click on their current website, connected to the site im working on AND have the translations included ? (they come with the software) I know how to import the 200+ properties from one to the other (with All import) but that software part just really bugs me and have no idea how to connect it to the wordpress site even though I know it should be possible through playing around and connecting databases I just simply dont have the knowledge for it. Is there anyone out there that could help me out on that regard, or give me any advice on how to go about it?

Any feedback on this post would be greatly apreciated,
Thanks in advance,

Dave