Should this be a HUGE red flag for me?

We turned a windowless storage/bonus room in the garage (that wasn't even counted in the square footage of the house when we bought it) into an arcade and game room, which has been a huge selling point as an Airbnb because it's really cold in McCall in the winter and not a lot of night life in the town so it gives kids and adults something fun to do in the evenings.

@Eric BussI am by no means a CPA, but my CPA uses the square footage of my house hack space as the percentage of what I can write off.  

. - Dont rely on one deal: Probably the most important tip is to always keep multiple potential deals in your pipeline, don't put all of your hopes into one deal because if it doesn't work out you'll be back to square one.

Originally posted by @Bruce Lynn:You really have to know what you're buying at the foreclosure sale....otherwise you can get stuck....https://www.bizpacreview.com/2019/06/16/guy-thinks-hes-buying-9100-villa-at-county-auction-hes-stuck-with-a-foot-wide-strip-of-land-765474 Wouldn't a simple Folio search show the square footage?

Purchase price: $880,000 Two single family homes on a 6700 square foot lot.

Does anyone have any insight if this is going to be the next Asbury Park or Red Bank in future years?  

Of course, there is "red tape" but it can be done.

The income source alone doesn't indicate a red flag to me.

You would hate to get that red sticker on your building advising you of a stop work order.