There is also that provision of what if I think its like if all or but just one of the units is empty (I forget the exact nature or term, but it can be restrictive).Its this a purchase or refi?

You’d naturally want to charge more.  

Certain types of glue can outgass smell like natural gas for weeks causing nauseating and vocal complaints.

Fifth, elements outside your planning or control can increase expenses significantly; tax increases due to budgetary shortfalls, insurance costs doubling due to natural disasters, tenant damage beyond what the security deposit will cover.  

Some plumbers refuse to install the cheap water heaters, so they will naturally cost more.

I picked one of the $850 ones, naturally.

A lot of times even if you can get the smell out it will leave permanent dark spots so you'll need to use a dark stain instead of natural wood.

Quote from @Bill Brandt: thanks for the clarification, the parcels being sold are "better than average" the parcels being sold are on a private lane,  with mountain views,  have natural gas,  electric, fiber internet, and cell phone service available. 

Depending on the location in NY there will be a different tolerance "strictness" when it comes to following the eviction procedure.

What is the correct procedure if the property is empty by March 1st but I never got the keys back?