It depends on who you're hiring but that seems fairly standard.  

If you building 2 , again depending on your lot size and projected finishes. 

It really is a minefield out there.I know everyone likes the convenience of the web, and they are tired of hearing it, but this really is a business based on relationships, not online anonymity.

Experience depends on who you deal with - the cleaner the loan file and more organized your paperwork the smoother the process with any private lender.

Depending on how close you are to Philadelphia you can really manage the property yourself as many Jersey neighborhoods are even closer to philly than some philly neighborhoods.

GC's get paid off of the work, not a flat rate... but in your experience, would you say that window of rate is generally 10%-20% project depending, or more towards 15%-30%?

That is often a matter of opinion and will depend on the attitude of your municipality.Most municipalities do not require neighborhood approval, but will offer the public opportunities to provide input which will be considered.

When it comes to furniture/design it depends.

I think this totally depends on the investor and how many projects they are doing in a given year.

As a few have mentioned, the best way would be to call the listing agents directly, but depending on how much time you want to dedicate, setting and going on multiple appointments with different people could prove to be time-consuming.