I called every facility in my market, introduced myself as a burgeoning investor, and asked if they would consider selling.

The cabin belongs to an acquaintance who doesn't want it anymore and is giving me the option to purchase it before putting it on the market.

Study the market.

Also, look at job growth in your target areas, new jobs usually mean a strong rental market.

The only change to the existing law was to expand the definition of "Provide real estate brokerage services" to include the following:Regardless of whether the activity is engaged in for another person, engaging in the buyer or selling, offering to buy or sell, or marketing of real estate or otherwise dealing in contracts, including assignable contracts, for real estate or options on real estate, on two or more occasions in any 12-month period.Principals buying and selling on their own account clearly fall within this expanded definition.

Anyways, myself and a fellow investor friend of mine have been discussing doing mobile home flips in our local market.

If your goal is to have properties in markets that have weather you like, that's awesome, but you don't have to START there. 

I always find it interesting how markets can differ so much! 

If you have any specific questions relating the German real estate market feel free to ask.Unfortunately most useful information will only be available in German.

As you pursue your goal of mastering the BRRRR method and building a passive income stream, consider exploring multiple markets and being open to how your assets might look.