What is reasonable amount to charge for a 3 family home....fire alarm system set-up and monitoring?  

Their debt to income ratio is making a conventional loan option difficult for them.

But what they did was keep it as an in house loan and charge an extra 1% (if i remember correctly) for a fixed 15 year rate then a one time balloon to increase interest for the last 15 years of the note.

I wrote a book - The Essential Handbook for Landlords - on Amazon which is a great starting point.You own it - you're in charge.

Also as a side note, I'd always recommend doing a conventional instead of FHA if you can.

3- If there is a determinable factor for the difference between the three above descriptions, how do most Make Ready companies charge for them?

Seems like you're limiting your search to either conventional financing or cash.

I really like Equity Trust and Quest IRA as providers of a SDIRA, but they both charge a fee based on the amount of money you have in the account - essentially penalizing you for growing it.Are there are any reputable SDIRA providers that charge per transaction, instead of by asset size?  

Conventional How did you add value to the deal?

One important factor is the condo eligible for fha/conventional financing.