@Nita Martin
My thoughts below:
We are in the process of closing on an unoccupied 4-plex with an occupied apartment in back. We are considering offering the spaces with all utilities, cable, and internet included. Is this a good idea?
This depends on the market. In California, tenants are generally responsible for all utilities. In some instances, the landlord pays water, sewer, and trash, but the tenants ALWAYS pay gas, electric, and especially cable and internet (due to their personal use and preferences).
If it is not common to provide these services, I wouldn't. Again, it depends on what neighboring owners and managers are doing. Complete a rent survey and find out if it's necessary. If not, then just list the units at the market rents.
What is the best way to get tenants? Are there any websites, etc. that you all feel work better than others.
Hire an experienced leasing agent. If you want to do it yourself, I'm a fan of HotPads, Zumper, PadMapper, Zillow, Trulia, Craigslist, etc. The wider the net, the better. Again, see what is most popular for lease advertisements in your area and use those. Don't forget to put up a for rent sign as well. Drive-by inquiries are still very common.
The property is approximately 2 hours away in our hometown where several close family members still reside. Should we hire a PM? If so, what is a decent percentage for this service? The previous PM/current realtor charges 12%.
If your family doesn't have experience, what do you want them to do for you? Just collect rents? Meet contractors? If so, that's do-able. But it's best if you have tenants pay you direct and just have family meet contractors or do quarterly visits, etc. if you want.
Regarding PM, 12% is pretty high. I'd seek out alternatives between 6%-10%. I'd pay no more than 10%, but ideally around 6%. Again this varies by market. Call other rentals, see who manages them, or ask brokers in your area for references to good property managers. Always get more than one bid and ask for references and the scope of responsibilities. You can google good questions to ask a PM firm to ensure you're getting a high qualify PM firm.
How are taxes filed as the property will be listed under our LLC.
Consult your CPA or Bookkeeper as each state is different.