- How do HELOC are calculated given that is revolving?

I don't know anyone who would give up equity for 30 days worth of revolving credit.Sounds like you don't have much experience. 

I cam across an HOA community that had a 3 br, 2 bath condo for sale for $145k, right in my wheelhouse!

However, there are two alternatives to traditional loans that give businesses the capital they need from within, by focusing on accounts receivable.Asset Based Lines Of CreditAsset based financing is a revolving line of credit structured around property owned by a business.

If it's any consolation, "perfect storm" conditions usually revolve around boom towns or single-industry areas - oil towns, car towns, etc (Dallas/Houston in the 80's; Detroit in the 90's/00's) - and are often coupled with governmental incompetence of foolhardy spending.

Retail strip centers are still more hands off than multifamily but you have management and CAM the tenants pay on top of base rent to reimburse.

Also debating if I really want my starter home to be a "revolving door" for my cul-de-sac?

So a part of the new leaf is me actually caring about things that revolve around finances more, figuring out that I feel stuck at my job and don't really want to do IT work anymore. 

And if indeed that is the case most of the time, should the negotiations revolve in most part around buyer's ability to one, cashflow, then most importantly refinance down the road to avoid the potential to default?

Have a situation now where a retail center is assessed at a low value but has been full for awhile.The state the property is in might reassess the value based on the higher recorded purchase price.When this happens it could substantially raise the CAM tenants pay with increased taxes.