Re: Buying a new property before selling existing
Only your bank can tell you but with a slow moving housing market (have no idea if that is also the case in Montreux) and no rental income yet, I doubt whether the bank will take that into consideration.
But, as you said you have 45-50% of the cash needed available, why bother?
Or is your current place not yet paid off?
When we bought last year, the bank noted that we have another property (paid off) but did not take that into consideration, it did influence the interest rate though.