Iran hopes for end of sanctions boom but investors still wary

DUBAI (Reuters) - With the prospect of a diplomatic breakthrough next month bringing an end to Iran's international isolation, officials in Tehran are preparing to roll out the red carpet to foreign firms. But a tough legal environment and tricky domestic market mean the hoped-for billions in investment may not come soon.

Only a few more weeks remain before the July 20 deadline to conclude talks between Iran and Western powers aimed at ending sanctions in return for limits on Tehran's nuclear programme.