For example, a quiet neighborhood that used to be a busy factory area might have hidden issues, like pollution.

It is my firm belief that money will not be an issue if the deal is right.

The ac install is a one time issue but the lawnmower is long term.  

What you have heard is predominantly not doable with most configurations and in most markets, with permitting.

Taking out a loan for EMD would make it way, way too tempting to look past issues in DD and close no matter what.I'd also be concerned about the ability to close in general if cash is too tight to fund even the EMD.

The building season is roughly may to October and permits and contractors need to be in place well before the start of the building season. 

I have a tenant that filed bankruptcy a few years ago due to a divorce and major medical issues. 

.- To expand your portfolio you have to think on doing self-property management, or refinancing to get more properties won't resolve the issue and add more problems.

I have this issue with my beach property :)Overall your approach to using cash and getting a loan later isn't a bad one at all.

In one year, the US Treasury Dept issued $21 trillion in treasury bills to fund the spending of the federal government (Kobeissi).