Handymen are cost effective for small jobs.  

If you are dealing in your home market insurance is very cost effective way to provide protection.

Get yourself some inexpensive business cards, and say something to the effect of buying and selling mobile homes.

Say, if they don't damage anything beyond a reasonable amount, they would get that lump sum back when they move out.  

@Erick GarskeNatural landscaping for your area is the most cost-effective to maintain.  

The licensing div. of your State should have some input and the ability to effect some level of response.  

What is the likely hood the house will be vandalized or damaged without anyone being there?.

I deployed overseas four times and was not able to manage the apartment building effectively, so I hired a property manager when I worked as a contractor in Afghanistan.

You may start out managing but if you don't continue then you will not have budgeted for future PM.First you said, "15% Repair & Cap EX COMBINED" then you said "Repairs are being budgeted at $150 a month" so I was unsure of what percentage you ended up doing.I did 10% vacancy, 5% cap ex (which is low), 18% R&M because your last statement was budgeting $150 per month.Our calculations may differ as I take the vacancy from the Gross Rent to achieve my effective potential (some may call it something else) and then begin deducting things like Taxes, Ins, PM fees, utilities (IF they apply).Since you didn't put taxes nor insurance I put $1000 for each.

I've seen a few properties in my area that I think may be under-priced relative to the value they would have if they were promoted more effectively to the right buyers.