Everyone's situation is unique and thus your CPA and Attorney will provide the best answer that meets your specific situation and desires.

@Jamiel StricklandYou're denying the unique growth of West Village by lumping it in with "downtown". 

I don't trust to give the code to a prospective tenant; even if we install one with unique codes, you still have to worry about them messing the house, or leaving the patio door open or window open and coming at night to steal stuff, and you'll have no idea which one of the visitors is at fault. 

Implementing unique design cues and/or a small solar system could do just that (especially in areas where consumers are more conscious of social/environment/green issues).

You no longer have the realtor as a buffer or advisor to answer unique questions that come up in a multi family transaction.Make sure to make any earnest money out to the sellers attorney and not to the seller directly.

There is no certainty that they will not go out tomorrow and spend it all on toys.

It only matters when you go to sell.I just bought a duplex that is 100% financed on a 4.5% fixed (was a unique one-time portfolio loan).

@Ty FrankelYeah L.A is definitely a unique market!

I am in a rather unique situation because of my young age of 20 and early financial savings from having a great job.

Its in the loan covenants that you signed for.it is a unique requirement. most loans have a time limit and if you go over that extension fee's are due.although its not common for a lender to take it from the draw funds as that would jeopardize the project if it cant get finished.