Mice normally come in from outside through small (even tiny) openings in foundation or broken windows in basement, then if they find food/water will breed and spread.They also won't stay I an area that has insufficient food, water and shelter for them to be comfortable. 

Just wanted to share a tiny bit of insight into what my experience has been engaging in the forums, mainly in wholesaling.I’ve met great people who have offered kind words and actionable steps, thank you @Bill Spell @Jay Hinrichs @Dave Chapa @Michael Pittman @Jerry Puckett and others...I’ve had the chance to connect with others and share my experiences and offer different POV as well as receive footnotes on strategies, books, mindset... thank you @Nick Britton @Laura Iannella @Mark Sewell @Barbara Gardner @Ken Nyczaj and others...It’s been great to go from thinking I struggle with all these things alone to finding a community .

The $100 per month cash flow is the small (tiny) picture.

You would only have a tiny amount of counter space, and the wall with the window would become unusable.

As I've mentioned this is a tiny 725 sf house. 

The two bathrooms are tiny and have no sinks.

Not too far from Hollywood, I had looked at some places there but they were all on the main highway, in very old buildings and small tiny rooms.

We can't approach this Demographic with a cookie cutter Real Estate solution but rather customize a solution for first time home buyers with lease option, house hacking, and building micro/tiny homes etc..

Buying a home would require planning which millennials are incapable of doing and unwilling to do because they do not believe in the future, they only live for today.This is the same generation that, when they do get a twinge of motivation, research buying tiny homes, basically glorified overpriced RV trailers that they have no place to park and 5 years from purchase will be worth only half what they paid. 

When I met my husband he lived in an old, tiny , did I mention OLD townhome rental.