I know NJ does not have a law restricting amount down like most states (10% or $1000), but you still do not want to get upside down with your Contractor, and I'm speaking as a Contractor.....I can't see why any reasonable, honest Contractor would object to getting paid as the went along.

That said, if the numbers are acceptable to you, then you don't need anyone's approval.  10% return on cash sounds objectively "reasonable", but many investors will not accept a number that low. 

Double digit increase expected again in 2021. 

Depending on the market and seller, the development objection can be overcome. 

So make sure you come in informed and able to discuss your objectives. 

For example, restaurant (where owners are objecting the most), notoriously don’t pay very much, with median wages around $11 for servers in 2020, compared to more than $20 across all occupations.

MLS, cash, and quick close waive the inspection objection due to known issues.

MLS, cash, and quick close waive the inspection objection due to known issues.

If they don't object and immediately drop the commission rate then how will they do during negotiations for offers, inspections, etc?

When I first got started I was getting shiny object syndrome thinking “oh I should buy 1-4 unit… no go single family… no go bigger multifamily… no do BRRRR method….