So you went based on pricing.3.

They will base their DSCR calculation on the market rent 1007.

I'm a contractor based in Maryland and DC, so the renovation aspect is well within my expertise, having done numerous projects for other developers and general contractors.However, I'm facing a challenge when it comes to choosing the interior design elements, such as bathroom tiles, colors, sizes, fixtures, etc.

. $360k equity (based on your estimated loan balance and estimated transaction costs if you sold, this is not calculating capital gains taxes but that would reduce your equity down to about $310k if you sold without doing a 1031 exchange). $8k cash flow (this will increase over time because you are in an appreciation market). $6k principal pay down (based on your current loan). $20k appreciation (based on 3% which is conservative, 4-5% is the historical average).

I would need to consult tax consultant for this however I expect to reduce my effective costs by ~$1,495/month (based on a 32% tax bracket).2.

When the ROE is significantly smaller than my CoC return (based on initial investment) I know it's time to make a move to increase the velocity of the money.

Once you have a pipeline, you can refine your criteria and adjust based on what works best for your market and strategy.

Based on your description, it sounds like you would violate the self-dealing rule and could put your SDIRA at risk. 

Unlike Robert K and many on this site, I judge a property based on total return.  

I charge a scaled pet fee based on the size of the dog with a premium for high risk dogs.