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I think you would be correct to take the word condos out of all of your lower level pages, Providing your top level page has 'condos'. The shorter the URL the better and having condos repeated when a search bot would know it has gone into the condos category already would not add any value.

Having the same URL structure after your top level page is fine as it is within a different category. If it is the exact same page however, make sure your canonicals are correct and functional.

There are many ways you can use internal anchor text. I do agree that you shouldn't have the same anchor text pointing to different pages when you are linking from the main body text, but in a navigation menu it is fine. If I had my choice based on the structure above I might do it something like Home > Condos > Island > City > Region > Neighbourhood. That is purely at matter of preference as it would allow for a good cornerstone top level Condos page to rank well and link to.

Whilst it is possible that Panda had something to do with your ranking drop I don't think so looking at your site. You have well structured text although it could certainly be thicker on your main pages. Your homepage current has 264 words including headers. Understandably it is challenging creating 100% unique content that is actually high quality whilst being a good length to optimize for Panda.

I would say that where you have disavowed links it is possible that you have disavowed some links which were in fact helping your ranking as opposed to hurting it. This has happened to a number of my clients and the solution is simply to work hard a building natural links.

Alternatively, your homepage is very media heavy (despite being well optimized for page speed). This wouldn't explain such a dramatic drop but it would certainly improve your rank as well as your bounce to bring that load time down. Sliders and videos on the same page even with deferring the JS still add a large data load. Yoast explains this better than I could.

Hope this helps!