Also get rid of the cat or you'll be charged an additional $xxx fee and an extra $xx/month.

Let's say 10% of them are criminal, with criminal intentions and criminal motives.

You'll likely pull a few hundred extra dollars and will will get shorter leases that could work better for your traveling.

I would have to get with the property manager and mimic the exact plans they have set up in the lease, all of which were probably customized by the PM to get a few extra dollars.  

It may sound nice to pay a 6% management fee but the extra fees can add up to be more than the other company that charges 10% with no additional fees.

Just be extra conservative with your ARV estimates and have a great team of contractors to keep rehab costs in check.

Unless you are planning on investing in your back yard and have extra time to spend, getting a good PM is very important.  

For example: the multifamily sponsors will usually pay the considerable extra cost required to do a cost segregation analysis and this will increase the investor depreciation in the early years (versus an individual, direct investor who often will skip doing this because of the cost).The advantage of the passive investment is that you don't do any work.

If heat goes out in the winter we drop off several units, so they can be placed in different parts of the house - including every room with water like kitchen and bathrooms.We also have dehumidifiers, carpet blowers, shop vacs, puddle-sucker pumps, extra hoses, extra sump pumps with battery pack, squeegees, and portable AC units ready to deploy. 

From personal experience, this can motivate them to do a final deep clean before handing over the keys.Finally, for peace of mind, you might consider consulting a local real estate attorney.