I am raising rent on my 2 rent controls, the rest I am leaving in place.

If I buy a property in a area where rent control laws are in place, how can i increase rents, considering its a duplex.

If it is a condo it will be difficult for financing as lenders do not typically lend to someone who controls a considerable amount of a condo building.Tax PIN’s really do not matter, for example I own property with a house and 3 parcels and the 3 parcels have separate tax pins.

Found my hot water heater controller and whole house shut off valve on Amazon.

I am also attracted to Real Estate Investing because I can really be involved personally in this investment unlike other investments such as the stock market that have many external factors that you have no control over. 

It's a very equitable way to structure the deal and especially if you're co-investing a significant amount you can keep a lot of the deal yourself, and complete control so it's very clean.

@Ken Moyer someone who is going through a divorce has no control of how and where their assets will end up until the divorce is finalized.

That takes the control of when to do the work out of your hands.

The price of SFH's is not controllable, so I use that variable to estimate the possible severity and length of downturn.Also, I'm not a SFH speculator, I'm a multi-family guy, but I pay attention to this because it's a barometer of rent potential and vacancies, and my calculations and data regarding this are proprietary. 

Such as control of the neighborhood?