You've already received some great feedback...and I'd add on....I'm not sure a gutted to the studs house is a good fit at this point in your investing. 

Then I think I’m going to add one for bookkeeping/accounting and then one for website, SEO, social media. 

Stupid add on. 

The other two are 4 units - I can't make the numbers work for just two units unless I'm able to keep the existing unit and add on or construct on the lot. 

It is the best looking house and one of most expensive on the block but probably one of the smallest so if i add on with a cash out refi, over time, i will lose money on the addition and assumely be paying more in monthly payments which cuts my already low cash flow.

If there isnt it would be easy to add one there if it is in like a closet or something.

I'm unable to come to a conclusion on whether it would be more financially advantageous to keep what's there since it's not broken and increase the rents accordingly rather than add on such a project.

I don't see you doing any measurable value add on this property.

Maybe look for cosmetic value add on the first one unless you really want to get dirty on a full reno.

The CAM mgt fee would add on $10 assuming 10% CAM mgt fee.