Now they are removing one of the lanes on Market Street between State and Pearl where many of the new restaurants are. 

After the free mail, if they still forget the rent I help them move by removing them from my property.

If it's not a safety hazard, I would be inclined to just remove it. 

In effect you have tied up your cash to BUY cash flow.

Many investors have found that mail and phone campaigns are effective in finding the off-market leads.

There's also an article there on Effective Email Marketing Tips For Realestate Marketers you may be interested in.

If you ask the manager to justify a fee and he starts hemming and hawing, move on or require them to remove the fee.

It's actually a gold mine because you have much more control over your buildings and the residents in it and the Vacancy Rates are held incredibly low because rent-regulated apts are basically removed from the available housing stock, lowering the supply of apts, as well as other factors including AirBnB.I have also seen abuse go both ways where Landlords purposely harass tenants.

After a plumbing, AC, a giant dead 200+ year old oak tree removal, and the “good” tenant leaving 6 weeks of repair and cleaning work, we had to unload the property.

One of the best benefits in real estate is your ability to physically effect your investments and change outcomes to an extent with preparation and research.