In most single family zoned areas adding a single ADU is not a value add meaning it will not add more value than the hands off cost of the addition.  

In addition, condos tend to not appreciate as fast in value compared to single-family or multi-family homes. 

I rented out the additional bedrooms to friends and family, charging them well below market, and sold when it was time for my wife and I to start our own adventures.

Unless you're in a Class A Neighborhood like Palmer Woods, Indian Village, Sherwood, etc,. the additional rent probably won't support the cost to build:(More profitable to take the build funds and buy another property.DM us if you'd like to discuss more...

I rented out the additional bedrooms to friends and family, charging them well below market, and sold when it was time for my wife and I to start our own adventures.

Let me know if I can provide any additional tips or resources to help.Best regards,Sadler Surratt 

In addition to having cashflow to add value and push equity, I still have had decent appreciation.

Outdoor storage, moving services, additional parking.

Beyond that, networking with other investors in the mobile home park space could open up some doors for partnerships or additional funding ideas.

I've opened two additional LLC's with them since I last posted here.