More importantly I looked at how technology could not only improve lifestyle but cashflow:(These are general numbers not associated to a specific product, please price your own product and charge +/- accordingly)30 Unit Apartment$150 deposit per 2 "smart keys" (returned if 2 undamaged keys are returned - kept if not returned)= $4,500 on deposit at capacity$75 replacement - This will bring in a few hundred a year minimum on this property(Make sure your replacement cost to the tenant is more than your key cost for the hassle of reprogramming and to be paid for your time and cashflow, consider it like a contractors markup for services)If I pay $200 a lock I am in for $6,000. however in year 1 I receive $5k+in deposits or replacement fees that could be realized.

For an rv park, you want to maximize allocations to campgrounds/land improvements for depreciation purposes, along with other tangible property.

Definitely sign up for credit repair at the same time try www.creditnerds.com they have helped many investors improve there credit at a very reasonable price.  

If you're looking to make improvements to try and generate cash flow I'd start with that you've got.

This can be improved and increased cash flow.

I am getting ROI of 12.88% at the moment. 1) Any advice on the ideas to improve ROI for the next home purchase?

I'm totally new to real estate and am hoping to meet and connect with like-minded people in my area.I'm an active duty military member, so if anyone has any experience with how I can use my status (VA Loan, BAH, etc) to improve my REI, please let me know!

@Deandre LeeI’m going to disagree about not adding square footage, you can still increase the value over and above the rehab dollars by just improving the building   I’ve bought many BRRRR projects and by just rehabbing kitchens, bathrooms, etc, I have increased the value above the rehab dollars, usually by 20-30K.  

The place has improved a little, because Dough, Thomas, and myself have controlling interest in that those communities... don't expect anything amazing, turnover is very high, and bank foreclosures are common at those price point, so much so, we don't even buy them for that price.

I created a calculator using excel and was wondering if there were any other metrics I should include or things that I did wrong or didn't account for or just any feedback in general to improve it.