CT realtors & home sellers: are hubbard clauses deal breakers these days?

we are lucky to own, hoping to upgrade, but will need a hubbard clause contingency to do so. a realtor we've spoken with is insisting on bridge financing (which is very expensive!) and two lenders we've met with advise to just be patient and make offers with the contingency (perhaps with a different realtor). if it makes a difference, we're hoping to move to cheshire and our current home is very much a "starter" (~$300k). thank you!