Once the offer gets submitted sending over a higher offer doesnt get you ahead of the current offer. It just might help you get to the front of the line if current buyer falls out. It may also be unneccessary as the approval could be even lower.
Most of the flips you see are houses sold on courthouse steps for all cash, with no inspection or title insurance. The flippers (at least the good ones) are performing a valuable service in many cases.
