With mortgage rates at their highest level in more than two years, the long-awaited boom in mergers and acquisitions may finally be here. But dont expect sellers to accept just any price. M&A is picking up, said Larry Charbonneau, who runs a boutique advisory firm, Charbonneau & Associates. The big fish want to buy the small ones, but the small ones dont know if its in their best interest to sell yet. Charbonneau points out...