Therefore, the deed is recorded in the name of the ROTH IRA and the ROTH Solo 401k based on the ownership percentages.

In my experience someone spending  more time working in the business does not always earn a higher percentage.

You don’t want your comparable market rent to be from a low rental taylor shop for example.b) Take into account the buildout or tenant finish, free rent, percentage rent (if applicable), expenses paid by the landlord and tenant, and any other unique contributions or concessions made by the landlord for this specific tenant.

10-15% is really low, do you mean that is the price you buy the unimproved land, and how much percentage you sell the lots for in the end?

First, FHA accounts for nowhere near a significant percentage of loans these days...but that's unimportant here. 

You only have the mortgage/note.Also, some counties make you start at a certain percentage of a price they select.

@Jacob Knowles welcome to bigger pocketsI would also include a percentage for CapEx for future major expenses (roof, boiler, ac)And it would be wise to include a percentage for property management even if you manage it your self.I use 10% for capex and 10% for property management It will change your numbers but it will be safer for youBest of luckSteve

Most buyers would rather finance 5k into the note and pay an extra $25....and most would have to borrow/charge a 5k remodel even if they got 5k off the list price.Scott Burns wrote a column a few years back and stated that a huge percentage of Americans would be hard pressed to come up with 5k in short notice.  

Should I be the only member or should I have my (under 18) child be a small percentage member?

That's the highest percentage investment property HELOC I'm seeing in Utah.