Examine the lease before you sign. If possible, ask for a copy of the lease several days before you are to sign it. Read it carefully and mark in pencil any sections you don´t understand or find objectionable. A Student Legal Services attorney will be happy to read over it with you.
If a clause in a lease conflicts with any section of the Nebraska Residential Landlord and Tenant Act that clause may be unenforceable. You should ask the landlord to strike that clause. The Nebraska Residential Landlord and Tenant Act, § 76-1401 to § 76-1449, can be viewed online by going to http://www.legislature.ne.gov/laws/laws.php and searching for the key words you want to see.