Great question. And I'll take a shot at answering it. Five acres is roughly 24,000 square yards. Let's say each person requires 50 square yards of living space (the size of a typical efficiency apartment). That means George can easily take in 480 Syrians.
Disclaimer: That does not take into account the police substation Clooney will have to build on his property shortly after the Syrians arrive. And it does not take into account the wall Clooney will eventually have to build right around his personal home.
“And it does not take into account the wall Clooney will eventually have to build right around his personal home.”
Nor the razor wire, guard towers, guard dogs, mine fields, auto-fire machine guns, alarm systems, and so forth, not the mention the payroll.