It involves some work but It is totally worth it (Cleaning after every guest, greeting and providing EXCELLENT customer service so you can maintain high ratings, etc),  Alternatively, you can hire people to do work for you.  

The primary drawback is the lack of control the owner maintains over design and construction decisions.

@Ralphy Rosado adding the insurance and taxes into the mortgage would be a lot of work for you as you would have to deal with setting up and maintaining an escrow account.

Assuming I find a deal, renovate accordingly and within budget, rent and maintain (all with funds from SD-IRA), could I refinance the property in 6 to 12 months, pay back my SD-IRA account and use the profits to purchase another property outside the SD-IRA LLC?  

Who will be maintaining? 

The fee goes toward maintaining your transaction details/records in their system for 7 years as required by law.

@Simond Wong  I try to maintain part of my portfolio to be section for the guaranteed income and long term tenants.

There are some beautiful and well maintained manufactured home parks..I've toured them......like everywhere, it's all about the level of development you are looking at. 

Plus no air-conditioning units or boilers/HVAC to maintain.

Basically, maintain it up to a certain level required by Cook county for vacant properties.