Unfortunately I don't know what calculator would work for this strategy as I'm not renting it but selling it on owner finance and its not a fix and flip nor a BRRRR to my knowledge. 

So if I wanted to do a flip in my 401k I could get a non-recourse loan at, say, 12% interest to cover the cost of the flip and I would pay no UBIT.

We have our own website and also use booking from HomeAway, VRBO,Trip Adviser and Flip KeyOur high season Guest are all repeat customers and word of mouth so they come through our website.One of our high season guest that we inherited, this was his 11th year on property.

They are usually at Keller Williams inspire reality office in Fargo, This month they are meeting at a flip property in south Fargo. 

I was wondering if anyone had experience with a company called dohardmoney.com I am considering using them to do my first flip to get my feet wet and gat the ball rolling.

We completed one flip together that resulted in profit.

If the management expenses and legal fees don't pencil out, you've simply bought yourself a job, like we see many contractors doing on fix-n-flips.

The flip side of this coin is that you will not have access to this money until retired, and then you will be paying taxes on the money when taking it out. 

I am currently purchasing my second flip home and was just curious.

I want to get into flips, working towards the middle to higher end eventually,  as well as rentals, ideally small multi family.