Your realtor should be going to bat for you - discussing the issue with the lender and the buyer's agent. if the appraiser missed a bedroom and a bathroom - it needs to be revised or reappraised by someone who can see.
the lender can contest the appraisal - best if your realtor provides "comps" to support the sales price. I had a client purchase a condo in beverly, the appraisal came in $50,000 low. we were able to keep the deal together. I had another deal with a low appraisal, the buyer proceeded with purchasing the property at the contract price (mortgage was of course based on the appraised price)
hope you can keep the deal together and close soon!... more
Consider the current value of your home compared to what you still owe on it. If you owe more than the home is worth, it might make sense to rent for a few years. You just need to ask yourself ~ are you comfortable being a landlord?