I'm fairly new to the Biggerpockets community but I'd like to be more involved and further enhance my knowledge of the real estate market.

I'm in on the wrap around porch to enhance the period of the house.

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Roofing can also be an expensive nightmare...we often find 3-4 layers of cedar shakes then a couple of layers of roofing tile on sagging pine planks 1-2 inches apart.

Welcome to BP Community; a great place to enhance and share your REI knowledge.

But I can say from experience that in NYC it is tremendously challenging and expensive (for the landlord) as legislation was passed at the state level in New York a few years ago, and then enhanced even further in the city specifically.1) 60% (or 51%?

It's not ideal, but it does keep tenants from feeling like they can burn through as much as they like because it's free.I would consider doing an overlay of the walls with that  thin drywall (quarter inch, I think?

productId=3747685&Ns=p_product_price|1&pl=1&Ntt=broanIt uses a 6 inch duct instead of a standard 4 inch, so it sucks a lot more air. 

These are not always readily available, but when they become available they could turn out to be terrific buys.I've always focused on value add and opportunistic investments in commercial, but having developed an interest in MF recently I've started to uncover more and more MF value add properties in the markets we're focused on for acquisitions.Buying them requires more hands on commitment other than simply management, but the value enhancement can be significant. 

However as noted above you can hire 5 different surveyors to do the same job and you will have 5 monuments within inches of each other it is very common that survey's don't align If this is a resi lot where a fence a a few inchs one way or the other does not matter not worth all the expense to fight over a tiny amount of land just come to an agreement with the neighbor and move on..