These penalties can vary depending on the loan structure and the lender's terms.

GC's get paid off of the work, not a flat rate... but in your experience, would you say that window of rate is generally 10%-20% project depending, or more towards 15%-30%?

Single-family conversions tend to be older properties built in the early 1900s that were very likely poorly converted and as a result if they have not been fully gutted recently, they will need that large scale renovation soon which can cost you over $200,000 to complete, depending on the scale of the project.

That higher interest will be a lower cost than the closing costs for the refinance so a net gain (depending on your new loan size). 

It could be possible to still negotiate a purchase depending on the stage of foreclosure it is in. 

It will likely depend on where you are looking. 

I do it manually (and keep in mind, it also depends on the state and location - VRBO does for some and not for others, Airbnb does for some and not for others) I know many folks happy with Avalara though. 

It may even be higher than 5% depending on the area. 

I mean this depends on where you are at financially.

Quote from @William Christiansen: Quote from @Charlie Hardage: @Carlos SilvaYa, it definitely works depending on your cash flow and numbers.