However, I’m still open to connect to an out-of-state accountant if he/she and/or their office can extend their help in a timely manner.

Is the ad written in a manner that would make a potential tenant want to rent from you vs someone further down the page?

Regardless of which route I take (SFH or Multi), I plan to base my numbers off of the returns I would need to sustain a buy and hold investment.  

Put your interests in alignment with your investors rather than in opposition to their interests and you can build a much more profitable and long term sustainable business with the same financially sophisticated clients rather than always having to constantly search for the next sucker.

Is it sustainable? 

Does anyone have advice for applicants who do not respond in a timely manner?  

For interest sake and possible future reference also have a look at Sustainability Products ( they are located in Kraaifontein, Capetown...not to far from you). 

As a Realtor I have certain minimum services I need to perform on behalf of my client and one of those is presenting all offers in a timely manner.

We would like to sell that house and buy another property in this manner to create a win-win for everyone. 

Takes a sustained effort to get on that first page.