I believe banks will allow you to apply 75% of the rent income towards your personal income which should help with the debt-to-income.

Hard to tell what you're asking but I think what you're asking is general loan questions and doesn't really apply to STR in particular.

This approach was applied during and after the great recession of 2008, and it helped make many deals work.

However, when they applied three years ago, they showed me bank statements showing VERY substantial savings. 

They’re entitled to apply their same screening standards and wait for a tenant who meets their qualifications.Once they find a qualified tenant, and that tenant starts paying rent, then at that point your brother-in-law would no longer be responsible for paying rent.

I am remodeling and also looking for a painter. 

Is the process for applying for refinancing different from applying for a mortgage to initially buy a property?

In most commercial loans, the guarantee applies based on a "bad boy clause" - which would mean some sort of criminal activity. 

There are a number of people that can pass math tests on paper, but they have no clue what the math means...or how to apply it.My first two questions to you are this:1 - How are you at doing complex proofs in Geometry?

New Jersey doesnt have the 2% rule apply, its less than 1% most of the time for SFH.