That probably doesn't work well for rents, and the neighborhood will look beat up in 10 years, when almost every house got sold to investors.  

Savvy buyer's agents look at stats like sold price to list price ratio trends and watch specific properties to see what they sold for compared to what they were listed for to really understand the market and make offers accordingly.

I found my laundromat on BizBuySell, and I sold it through that site as well.I still absolutely think it’s worth networking with business brokers and doing direct outreach to business owners, but you don’t need to take listing sites off the table.If you’re sending out a lot of outreach messages on listing sites and you’re not hearing anything back, it may have more to do with you than the platform.

He wanted it all sold as a single package with no owner financing.  

We sold out in 2018 and now in a new market but we still own together a 42-Unit.The coaching program was for sure the best thing I ever did.

I even sold my townhouse rental  just like you sold your 4-plex to keep the process going.

Keep in mind that office is down right now and it could take an extended period to fill.Try to determine why it hasn't sold for 2.5 years.

The property was held for 25 months and sold.

We have sold a few properties and experiencing this process from the seller's side double underlined that for me. 

My question is: Have you heard of any property management companies (single-family, HOA or multifamily) that have been sold recently in your area—or anywhere in the U.S.?