My complaint is that charging as a percent of the rental is disadvantageous to us.  

If you have had experience with one or more of these methods of financing, please share the advantages/disadvantages you have experienced. 

That was exactly my thought process, to try and be top of mind for whoever has a friend or relative that needs to sell quickly.I was just thinking since I live in such a small community where everyone knows everyone, I could leverage that instead of seeing it as a disadvantage but your reasoning makes sense.

If you're new(as you say you are,) then you're at a competitive disadvantage to those who are able to make those estimates on the fly.

Is condotels good investments and in 20% downpayment you’ll earn already what ate the advantages and disadvantages

@Matt Gilroy one of the disadvantages of the converted home that I can think of , is that I would think the utilities arent sub metered.

Without any reliable Contractors, Handymen, Cleaners or personal experience you are at a disadvantage about the $6100 Turnaround Costs. $6100 could be reliable if they had to do significant repairs during the turn.

If these features in your unit pale in comparison (age, condition, etc.) to the others, it puts you at a competitive disadvantage. 

So you would lose the advantages of an LLC and add the disadvantages of a C-Corp. i don't know what advantage you think you might gain with this structure but it will probably not do what you expect.

Disadvantages: If you are planning to use an external accountant, it hassle to transfer the data back & forth and also since your data is housed in your computer, there's a risk of losing data in case your hard drive failed.