High Taxes- Example, Pickup a 50K home, reno for, example say 30K.. you basically paying 75 mills - Do the maths and is it worth the extra headache listed in (1)/(2)?

They do go over some math that's fairly convincing in my mind.SF Bay Area is in the same league as NYC in my opinion.

Based on some hypothetical math, I think that buy/reno budget on these places should be about $75k/door (purchase price + construction) and will rent for $500/door per month.  

Be prepared and do your homework. 

As for a tax right off being the reason you have a mortgage proves that people can’t do simple 1st grade math.

If for rough math you use the 50% rule with a 15% mortgage, it will be tight.  

The scenario you mentioned is the definition of bad math.

Still, there are no special magic words that make a rental home work and everyone soon realizes it is just another home for rent with the same challenges every rental home has had for the last 100 years.

Do your homework-get all the facts out, talk to some tenants-one of my favorite sources of info.

I was often influenced by the conservative investors which cost me a ton of money long term and turned me into a flipper rather than a buy and hold guy in the USA.So do your homework first obviously, but then check that you have a pair and go for it.