@Andy22 Not only is not considered stable income, even if it was, you'd be buying a second place which is now an investment property and you need 40% down.
We learned about the income part the hard way. It's taken us three years of tax returns before any bank considered the income "stable". They just don't get it.
We just closed on our third property and it was a major hassle to get a mortgage. None of the big banks would touch it and we finally ended up with a small bank where the mortgage application is reviewed by a group of humans on a local level, not by an algorithm on a corporate level.
I suggest considering to move your airbnb income flow to a small bank, establish a relationship with them, be prepared to show tax returns for at least two years.
Good luck!