Possible issue is immigrant intent. PERM is an indication that an immigrant petition will eventually be filed for you by your employer, though an argument could be made that it's the I-140 petition, and one that is current, that should show immigrant intent. I'm not saying it's a certain issue that would be raised, just that your question asks for any possible issues.
Attorney Sarmiento has given you a very conservative and appropriate response. Be careful with intent issues. Remember, a PERM and I-140 is about immigrating here. An F visa is about returning home after studying and not living here permanently.
I agree with attorney Sarmiento.
J Charles Ferrari Eng & Nishimura 213.622.2255 The statement above is general in nature and does not constitute legal advice, as not all the facts are known. You should retain an attorney to review all the facts specific to your case in order to receive advise specific to your case. The statement above does not create an attorney/client relationship. Answers on Avvo can only be general ones, as specific answers would require knowledge of all the facts. As such, they may or may not apply to the question.
Major red flag. Read this for some clarification on intent issues: http://www.swagatusa.com/archives/1081
Dhenu Savla, Esq.
This answer does not create an attorney-client relationship and is not meant to be relied upon as legal advice.