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%?

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. 

You would to have opted for an enhanced policy to cover this. 

My main interests are for low cost insulators for non-residential applications, but if I can integrate micro rebar or other enhancements and achieve a code compliant (by PSI compression test) formula, then it's a matter of finding a PE to sign off on a floor, foundation or wall application.

Thinking along those lines, head my advice to stay active, the advice and perspectives of others will greatly enhance your level of expertise and before you know it, you will be answering other members questions.

Instead, it means that we get into the heads of the person most likely to be interested in your listing.We take into account the city, neighborhood, average income, and lifestyle (professional, retired, etc) of your potential buyer, and then we enhance that style.

Oftentimes the reason you have 3 units, but as a legal two is because enhanced egress is needed for the third unit, for attic ones in back stairs, and the cost usually outweighs the option for owners who are illegally renting the third unit.

How would you enhance this bath a bit more based on this same size? 

If I can find something that needs help cosmetically but is solid structurally, I can get a really low price, then start enhancing.