Sorry to read of your illness.
I'm sure you will get many real estate related answers given this site. Mine would be one of them. First, are you looking for short term or long term investments? That could change some of the answers.
Personally, after consulting a diverse group of non-biased professionals, I might look for an opportunity fund - what some may call a 'vulture' fund - to make investments in real estate, specifically single family housing. Regardless of the swirl, real estate will remain a great long-term investment (people will always need housing, right?) I would bet you can count on ~10% gain per year if you were to stay in for ~10 years. Also, I would shy away from commercial investments right now due to the compressed cap margins.
Housing in Mexico is also doing well. Financing can be tricky and rates a bit high, but with the the Mexican Government creating the fideicomiso you can own property. Speculators seem to have driven the market up over the last few years, so I'm not sure what appreciation you would see moving forward - but I'm happy to refer you to some people I know that can give you deeper information if you like. I can also refer you to trusts I know of, if that is of interest.
Hope that helps!