There is no statutory language regarding ineligible offenses.
The petition must be filed in the court in which the acquittal or dismissal was entered. For the specific procedure, see Nev. Rev. Stat. § 179.255.
A person whose petition is denied can petition for a rehearing not sooner than two years after the denial, and no more than two rehearings can be requested. Nev. Rev. Stat. § 179.265.
There is no statutory language regarding fees.
The court can order the sealing all records of the arrest and of the proceedings which are in the custody of any agency of criminal justice or any public or private company, agency, official, or other custodian. Nev. Rev. Stat. § 179.255(7).
All proceedings are deemed never to have occurred and the person can answer accordingly to any inquiry, with exceptions listed in section 179.301. Nev. Rev. Stat. § 179.285.