Partnership LLC Form 1065

My son and his wife opened a business under a partnership LLC last year in November.  We are not a community property state.  Per IRS, they will need to file form 1065 which is similar to Sch C for self employed persons.  They ended with a big loss so is there a limit on the amount of loss they can deduct and can they carryover to subsequent tax years?  The TT Home & Business does not include the 1065 preparation or the K1.  Do I manually prepare this?  Form 1065 is confusing.

Thank you