You will also find a pretty decent percentage of these vacation home owners are getting up in age and no longer make as many trips nor are as interested.

A strict HOA is probably more likely to cite you for HOA violations, as tenants tend to care less about the condo that they're living in than a homeowner would. 

Walk up to a homeowner and ask them for their house.  

The purchase price, loan amount, your interest rate, whether you need mortgage insurance, your homeowner's insurance cost, property taxes, and your current monthly debt obligations all factor into your DTI.  

I'm taking a break from development right now, but still offering design consulting services to other investors, developers, and homeowners.

I see regulation as an opportunity.There's zero reason the city/county/hotel business/your neighbor would not catch the Airbnb homeowner.

I've sold (for others) 6 properties in that neighborhood in the last 60 days - all were vacant and run down, and all of them were bought by experienced investors (their condition prohibited most would-be homeowners from considering them).

This immediate implementation would have been very bad for investors, bad for resident homeowners, bad for renters: would have been all-around painful. 

As an example, we were doing a charity project for a home owner that costs us $30 in materials but $210 in licensing and permits.

While there are home owners who simply can't afford paying their taxes, others have access to money but don't want to spend it on taxes.