If you are looking at a loan amount of 100k then I wouldn't recommend refinancing unless you are shaving at LEAST a full percent off the loan and likely that wouldnt even be enough.  

@Kent KettellWe have been using loan to cost funding our deals the past three years, with community and credit unions, and the refinancing once stable to agency.we are able to get 80% of the rehab built into the loan, and it has allowed us to come up with less.

I've looked at airdna and the VBRO revenue calculator but will check the other sites.I have another question re financing...let me know if there's another group to post in.

I would suggest refinancing into a 30Y DSCR loan with little to no prepayment penalty.

As these properties are all paid off in full, we are considering re-financing a few of them at some point for repairs, but also to potentially expand the portfolio as well.Thanks again,Phil 

However, this comes with the risk that market conditions or interest rates could change, making refinancing or selling more challenging at that time.On the other hand, a conventional 30-year mortgage offers long-term stability and predictability.

I bought a duplex in RWC in 2013 when things were a lot cheaper, and then refinanced when rates were crazy low, so that worked out well but it's a different world now sadly -- otherwise I'd love to rinse and repeat!

You will also have the ability to refinance the new purchase easily with a delayed purchase refinance (You can price these as a rate and term refinance), if you plan on only refinancing the purchase price + cost of improvements. 

So far, I've started using the BRRR strategy to look for more properties and am refinancing two of my rentals, but there have not been any issues with the fact that we live in an RV.I'm curious if any other investors out there have went with this approach to their own personal living situation.

They had to do it, otherwise many banks and commercial customers are at the point of refinancing and the Government itself is at a strategic debt refinance point; thus, if they didn't lower rates, it would have been a catastrophe short term.