If it is working with subs, a GC license won't help that in any practical way.At the end of the day, it depends on what you are looking to achieve.  

Those are going to be my biggest questions when looking for something like this on or off the market.Thank you for the input. previous business owner and building owner has been practicing for a while and built this office for medical office ( receptionist and exam rooms ) with nice decorations.

Good to see the city make some practical decisions.  

Find Brandon's videos on YouTube for the "four square" method of analyzing homes and practice.

- What are some best practices we should keep in mind to keep maintenance cost of the ADU to the minimum in the long run?

If you want practical support without being bound to a specific system, an “in-house” advisor could be the ideal fit for you, offering versatility as you build your own approach.

However, you should always do some market research, talk to an attorney, and be knowledgeable about the law in NYC.

.: I'm curious how CA agents can make a living with laws like AB2992 that state:"If the out-of-pocket costs to pay their agent remain too great and the seller and buyer have not yet reached an agreement on the sales price and/or terms, the buyer may walk away from the subject property provided there is an exit clause, proceed without representation, or approach the seller's agent about possible dual agency representation." 

Quote from @Kar Sun: It appears the law requires you to allow them to attend, inspect together, and mutually agree to a list of damages: https://codes.findlaw.com/tn/title-66-property/tn-code-sect-...Print that off and follow it.Make it clear to her that she is not permitted to bring guests.

They know the market, understand contracts and law, are experts at negotiation, provide a second (objective) set of eyes, and more.