They involve broader changes, such as updating the base year for price indexes, incorporating new economic census data, revising methodologies (ie, their guess), or even reclassifying industries to align with international standards like the North American Industry Classification System (NAICS).

Per this NY Times article, the average American knows around 600 people.https://www.nytimes.com/2013/02/19/science/the-average-american-knows-how-many-people.html#:~:text=The%20average%20American%20knows%20about,do%20you%20know%20named%20Kevin%3FPer the US Census Bureau, the average American moves 11.7 time in their life, which based upon an approximate lifespan of 84 years, works out to be about every 7 years.https://www.census.gov/topics/population/migration/guidance/calculating-migration-expectancy.html#:~:text=Using%202007%20ACS%20data%2C%20it,one%20move%20per%20single%20yearSo, if the average American knows 600 people and they each move about every 7 years, that means that the average American knows around 85 people that move in any given year.How many of those moves do you want to be involved in?

I ask because you said the previous owner is involved but the previous owner shouldn't be involved at all if its a subject to.If you hold the deed then it's just a normal refinance.

We've had to get attorneys involved several times to get the city to back off.Not sure of Ohio statutes, so this is NOT legal advice in any way.

Property management involves detailed accounting, which can become overwhelming.

Most of the other neighbors are elderly and don't seem to want to get involved. 

Attorney's Office, Central District of CaliforniaFormer CEO of Orange County-Based Private Equity Fund Charged with Conning Investors Out of $62.5 Million via Bogus Promissory NotesSANTA ANA, California – An Orange County man who was the founder and CEO of a private equity fund has been charged with defrauding hundreds of investors out of approximately $62.5 million via a promissory note scam involving real estate, Broadway shows, and cryptocurrency, the Justice Department announced today.Marco Giovanni Santarelli, 56, of Laguna Niguel, is charged with one count of wire fraud.

I'm confused- if you have a property manager, why are you involved in this at all? 

Leverage magnifies return.3) The effort involved in adding an ADU is comparable or larger than a rehab associated with a BRRRR.

It is also important to know if you want to be involved or let others take care of details.