My plan is to buy the house subject to their existing mortgage, renovate the property, refinance it and pay off their remaining loan balance using the money from the cash out refinance.

You take policy loans.

Are there any wholesale lenders that will do a rate and term refi on 4,800,000 loan balance,  5 unit property.

Quote from @Austin Brummett: I wouldn't do anything right now except continue to save and learn, because you are likely moving soon.Lenders usually want to see two years of employment history, so you won't qualify for a loan any time soon.

It’s a lower risk strategy since you’ll be living in one of the units, and you’ll qualify for low down payment loans.

VA loans are the only loans that allow this, and there is no rate penalty for it no longer being your primary home.With that in mind, you could do a cash out refinance today at a higher rate than current market rates which will create profit on the loan, we can take that profit to pay for your closing costs.

To us, its a "Bridge Loan" (lol).

I’d pay my 0% interest for a year credit card loans and 401k loans off asap then repeat.

Why not take out a loan from the equity to pay off that debt?

.~ I will most likely purchase the first home (multi-family) using a bridge-DSCR loan combo or a FHA203K (3.5-20% down).