My experience, you'll get quotes from $165psf-$210psf depending on the area, size, conversion or ground up etc. 

I believe they put in a FAR (floor area ratio) which limits the size of the home on the lot.

Like people, they come in all shapes & sizes.

BP has already had a big impact on me recently, especially regarding my decision with the FB mastery program but I wont get into the details of that here.I am looking forward to beginning real estate investing as a business through wholesaling and flipping with the goal of increasing the frequency and project size until passive income properties can enter the picture.

I believe the catch anywhere on Long Island is to get a true deal otherwise any long island size mortgage will hinder cashflow even with low taxes.

I can see different viewpoints on the matter, depending on the size of the mortgages.

We run about 60 units currently which I feel is the perfect size, because we are big enough to partner with Marriott and have enough revenue to have a full staff but small enough to know all of our clients, some on a personal level. 

. - $4,000.00 3) Frame and finish basement - $6,000.00 (with full second bath included will run about $10,000.)4) Painting a property of this size including the finished basement - $2,500.005) Remove and replace all doors (about 10 in this property) with 6 panel hollow doors - $15,000.006) Install HVAC to include Furnace, condenser and ductwork - $7,500 (If the ductwork is already in place we can have a 2.5 ton furnace and condenser installed for $4,000.00(ductwork is the most consuming and labor intensive part of installing a HVAC system)7) Install carpet on second floor(This includes all three bedrooms, hallway and stairs) and basement $2,300.008) Refinish hardwood floor and new color of the stain of for the living room and dining room - $ 900.009) Replace windows with all new energy efficient vinyl windows - $3,000.00I think that's all of the big stuff.

keep in mind when you read BP you have value of portfolio and you have EQUITY big difference.. give me Steve's 1 mil of TRUE equity over 1 mil portfolio or whatever size that has max leverage huge difference on NET cash flow and ability to ride the market if you have a downswing ike we are seeing now those with 80% leverage like so many like to do could find themselves at least for now with ZERO equity and all debt so plan B that is not painful . 

Disclosure:  I have never sold a deal this size.