Having each service separate can often result in delays, inefficiencies and more work for you as the owner.

Therefore right now I'm considering using a service for submetering and then billing separately (currently I live in the ADU and rent out the main house).Does anyone have experience with this? 

Securities and Investment Advisory Services offered through DFPG Investments, LLC.[1] Multnomah County Executive Rule No. 388, March 11, 2020[2]Marcus & Millichap, 2020 Multifamily North American Investment Forecast

Located in a promising area of Richland, MO, the home was a blank slate for value-driven improvements.

We don't allow any "deal-making" in the forums, which includes advertising your services or properties, looking for partners, etc.

It should be as easy as converting one conventional loan that cashflows well to a Debt Service Coverage Ratio loan or DSCR.

Investing in curb appeal, such as landscaping improvements, can make a significant difference.

Also, you are not buying at a premium and can allow the property to appreciate if that said area is historically improving. 

I hope you are asking two separate unrelated questions, because there's no point in doing cost segregation for properties held inside your self-directed solo 401k, save for some very rare exceptions.Some of the Bigger Pockets experts who operate reputable costs segregation companies are @Bernard Reisz, @Yonah Weiss and @Julio GonzalezSome of the Bigger Pockets experts who offer Solo 401k administrator services are @Dmitriy Fomichenko, again @Bernard Reisz and @Brian EastmanReach out to them and see if they can help.

On the other hand, these both are markets that are growing steadily so once you improve the property the equity is there.