Rene,To me it really depends on the market you are in. what percentage of the rent and monthly expenses does $100 represent? 

With 179 you are going to be limited based on your percentage of business use with the vehicle (so still need to track mileage), and if you go under 50% business use you can end up with a recapture of your prior 179 deduction - income with no related cash flow is always a bit uncomfortable!

Keep in mind if you are house-hacking, you will only be able to write off a percentage of the bills.

Median-priced homes will attract the highest percentage of qualified residents looking for rentals and the highest percentage of owner-occupied home buyers in the future. 

Again, I don't know if the Philadelphia assets I've observed with questionable values are REIT owned, and if so, make up a significant percentage of the REIT portoflio, but if they are that is a serious red flag.

Companies are having to set aside a certain percentage to cover the Cap Rate insurance and as an abundance of caution with these interest rates- class B are paused.

The buyer comp agreement has to be a specific dollar amount or percentage. 

Also, it's still a small percentage of owners that have floating rate debt.

and the entire conventional wisdom of the 70% are there any people who don't really use it all and have found out their ways of making the numbers work Like adjusting the percentage based on the market. 

While the guarantee of income sounds great, it's only a percentage of the rent, typically up to 70% and the tenant has to pay the remainder.