Is your income considered variable in nature depending on job sites and that you do not work a set amount of hours per week?

I just mean to say that I don't think there is anything wrong with their business plan, their operational expertise, and so on, so unless something melts the economy down, it seems as though Brian integrity of the operators is the only remaining variable. 

I am curious because that is a very broad statement and there are many variables to this - what is the IRA invested in?

If youre asking why the loan amount is only $220k and you have to bring $120k in a downpayment, then the lender is likely being conservative due to the variables of the deal (or maybe this is an inexperienced lender).The loan amount is 67% of the purchase price.

You are correct that there is a lot of variability in prices.  

If you're W2 but hourly and "variable", meaning you don't consistently work the same fulltime hours each week, then you'll still have to average income over the past two years and may not qualify at all, depending on the circumstances.What will not work is using an S Corp to pay yourself via W2.

My biggest rule it to pay off the heloc as soon as possible because the rate is variable and its much safer to be in a locked in mortgage.

I recommend you do this annually to adjust for utility increases and other variables.

Occasionally I catch some cleanliness issued that I am not satisfied with which I believe is due to variability in attention to detail between people on their crew, or lack of training and familiarity with my property.I've seen mentions of the value of post cleaning pictures from hosts on other forums.

  (2) Variable cost: platform fees from Airbnb and VRBO, lodging/hotel/transit or whatever pass-through tax your local AHJ requires, cleaning fee, cost of replacement for consumables, repair and maintenance, etc.