The new loan at a 5% interest rate would then pay off the seller's remaining balance, effectively transitioning your financing without additional down payment.It's also worth noting that some lenders might allow a "cash-out" refinance, where you could potentially take out more than the existing loan balance, given enough equity in the property, which could be used for further investments or improvements.

My preference would be to obtain conventional financing (although this may not be possible) to get the best rate.

That's about the going rate. 

I was wondering what the tax consequences would be if a Roth 401k is transferred to a regular 401k or is that not possible?

Or, if you were doing the work yourself, bill that hourly rate to the property as well?

This means the rates are better, but again the process can be a headache.Each loans has it's pros/cons, so it's best to know what your goals are to know which route you should take. 

However, paying off your mortgage that you acquired with low interest makes no sense to most in a 7%+ interest rate environment.  

I own and operate one currently and I'm still able to cashflow with my crazy 7.8% interest rate.

30 year fixed rate MortgageHow did you add value to the deal?

I suspect if interest rates come down as expected this summer that could drive prices back up here.