The post was definitely me blowing off some steam. 

If you or your tenants cook a lot, they will probably appreciate the outside exhaust, because it keeps grease, steam, etc out of the kitchen.Go in to the empty units and see what you have. 

Gut rehab of kitchen and bath, upgraded electrical, plumbing, steam boilers, and water heaters.

I told them I had the carpet professionally steam cleaned before they moved in 4 years ago, with the expectation that they would call the professional steam cleaner upon moving out.

I actually don't think it's steam but it does use radiators.

Or the hot water (versus steam) heat system?

It took 20 year almost for the light to really turn on, from then on it has been full steam ahead.

Not for me to say and I don't feel I have enough info on OP's background - however the 'full steam ahead' mentality comes with (earned) experience, which you may have but the OP may not.

However, you can keep recycling your money, whereas generally people who are getting those higher cash flow-year-olds have to leave more of their money in the deal, and usually they run out of steam once the money dries up

I'm a newbie investor based out of Hudson County NJ, and I was wondering what markets people have noticed are really picking up steam for investments?