<p>Alternative asset manager Star Mountain Capital is bringing on board Mark Weisdorf as a strategic investor and senior adviser.</p> <p>The former CEO of J.P. Morgan&rsquo;s infrastructure investment group, Mark Weisdorf, has just signed up to a lower-middle-market private equity firm Star Mountain Capital after two years running his own company.</p> <p>Weisdorf has just joined as a strategic investor and senior advisor at the New York-based PE firm. He will &ldquo;assist the team with institutional relationships and fundraising, deal flow,&rdquo; he told us.</p>