Now, I'm looking at 15 to 20 if I'm in the market to buy.An investor, who teaches real state courses at NYU invests heavily in Westchester county whereas his real estate office is in NYC where he handles leasing for his family real estate business.

Or go directly to the tax assessors office and have them filter out a list of multis in the area, then skiptrace the owners personal information to cold call or direct mail. 

H Jay,I would say the pros of having your license outweigh the cons because it represents additional revenue streams for your business and of course full access to comps etc.

You need to talk to your Title escrow officer what is optimum.

I have a client who wants me to list their industrial lot valued at 1.1M, another client who is actively looking for a doctor's office here with a budget of 2.2M and another client who is looking for a office building for around 650k. 

@Eamonn McElroyThoughts on this statement:“While depreciation not claimed, under allowed vs allowable, would not be subject to recapture taxes, the unclaimed depreciation would reduce the basis in the property”.I have a CCH or Bradford article on this subject I can link later, but cannot also remember if this was specific to a home office depreciation deduction.Economically, why someone would not claim depreciation is beyond me.

If your market is a much of millennial's looking to buy houses next to a bunch of tech company head quarters or big branch offices, then ya it might be worth it, heck you might even get to charge more.

All of these work great as they coincide with investing & need physical offices which are of course housed in my commercial buildings. 

I second this, you can then also show potential buyers that you are making $X a year in revenue on it.

(coupled with bad loans) 
Also if interest rates move up (which i think will happen when the new president comes in to office) that will also push down home prices, but in general now is a a great time to buy i think.