I seem to recall that in Germany most apartments are owned by the government and the federal government sets the rent. 

I don't have experience; but please remember...right now digging basements is the most regulated thing in the city.

Yh I know different regulations may or may not allow general solicitation. 

Another concern is how fast (slow is probably more appropriate) the government would be in doing their part.

Very helpfulRe: 15% it can be a good rule of thumb, but understand that every project may break that rule due to specific issues (title, environmental, local government, design, etc.) but yes your permits, arch, legal shouldn't be blowing up your budget at 25% off the bat.

Each month, CES surveys approximately 142,000 businesses and government agencies, representing approximately 689,000 individual worksites. 

The banks are required by government to do things like this. 

@Carolina GutierrezWhen a property is sold in pa there is usually 2% -4% of the sale price that goes to the government(transfer tax) -dependent on where you buy.

Mine happen to be Mexican, and they can prove identity via Mexican government issued "matricula consular" (forget exact spelling).. they look like drivers licenses sort of.

Many jurisdictions have laws and regulations against non-owners providing short term rentals.