Anyone have a good link to the basics of the refinancing process?

[Michael Bentz]

Can someone point me in the right direction for understanding how a refinance of a home/duplex works? I get that you have equity and that’s valuable, but I just can’t seem to get my head around the numbers side of it - An example would be best, so if there’s a thread with this already I’d love to see it but I can’t search on the app! Thanks!