If you could have the exact same mortgage you have now EXCEPT that it functioned like a line of credit (ie. you can put all of your income toward it, but then still have access when you need it), would you want that?

I'll work on a old house any day over a new one, much easier to access everything, at least in my cases.

Have about 50k I would invest (access to more), with excellent credit and good income too, from my full time job.

I'm just beginning but am considering a bigger commitment in the next five years or so by accessing some or even all retirement funds to buy a building (I'm sure people have thoughts on whether or not that is a good idea!).

My business has access to AppFolio, but it doesn't seem to communicate with the STR side of things. 

In your scenario you'd have a potential tax event on that $200K difference.Here's a creative way to access most of that money tax free however. 

How is access in the winter?

Early testing of this new system indicates that it’s a pain to get access to.

The HML covered 100% of the $32,500 rehab budget through drawbacks.Refinance: Post-rehab, I refinanced into a primary mortgage, creating 25.5% equity in the property.Future Financing: I plan to leverage the property with a HELOC to access up to $86,000 in capital for future deals.

Hard money is expensive.Some questions to ask yourself to assess risk:Do you have access to a reliable contractor who can complete the work on time and stick within a budget?