The biggest issue is figuring out what it's worth now. 

This is the biggest incorrect reporting item we see related to ST rentals.

@Alfredo Coria yes a HELOC is most definitely more debt, but the goal here is to bring in more rental revenue as well.

Revenue (USD)1,5046429991,2451,6872,3843,6346,059Revenue 2021:MarketBedroomStudio1 Bedroom2 Bedroom3 Bedroom4 Bedroom5+ BedroomLowest monthly revenue4781551262994855678381,220Highest monthly revenue3,7021,7822,4023,2614,2265,9607,58113,008Top listings by revenue (2021) by typeBedroom (USD):26,267 - www.airbnb.com/rooms/4194669920,739 - www.airbnb.com/rooms/41933482Studio (USD):15,938 - www.airbnb.com/rooms/877259715,513 - www.airbnb.com/rooms/4372084215,505 - www.airbnb.com/rooms/437125351 Bedroom (USD)46,729 - www.airbnb.com/rooms/4371253541,631 - www.airbnb.com/rooms/4473623034,878 - www.airbnb.com/rooms/437125352 Bedroom (USD)46,764 - www.airbnb.com/rooms/4474057646,753 - www.airbnb.com/rooms/2794866646,568 - www.airbnb.com/rooms/352304833 Bedroom (USD)65,067 - www.airbnb.com/rooms/3016841862,927 - www.airbnb.com/rooms/3092969360,572 - www.airbnb.com/rooms/79445974 Bedroom (USD)95,798 - www.airbnb.com/rooms/461402578,379 - www.airbnb.com/rooms/2168099972,150 - www.airbnb.com/rooms/23319248+ 5 Bedroom (USD)71,752 - www.airbnb.com/rooms/3585985153,277 - www.airbnb.com/rooms/541379926,563 - www.airbnb.com/rooms/5281704Other market info- Average selling price m2: 2.680 EUR- Average transaction value: 155K EUR- Average rent (long term) per m2: 4.9 EUR/m2The numbers were collected from a pricing software that we use to manage the pricing of apart-hotel units we operate.With this information I was able to calculate the maximum I would be able to pay for property (including works, buying costs, etc), to have an edge for a positive cash on cash return.Joao Antonio

The way you've described the deal, you are going to be making payments without revenue for potentially a very long time... 

It was my biggest mistake in hindsight, but it was still a great decision. 

As far as the refinance, the "unknown rate" is the biggest factor for us in considering a longer fixed term.

Electrical and plumbing make up for the biggest headaches and cause a lot of problems.

Turnover is your single biggest expense!

The biggest negative with HOAs is that they can change the rules and make renting difficult to impossible depending on local laws.