It is usually best to have a process server deliver notice, so you have a third party affidavit proof of delivery.

Typically, these are pretty balanced to protect both parties.

Benefits both parties.

So in essence bringing two parties together for compensation.. have no real ability to close other than to say we could close if we wanted to but we all know they have no intention of closing if they cant find a buyer of the property and get their assignment fee.

Is there a third party company who can provide maintenance, a property manager, etc?

They will also charge you to have an inspection by a 3rd party to make sure the work is done.

They will also charge you to have an inspection by a 3rd party to make sure the work is done.

It doesn't have to be fancy and written up by an attorney, but it should be very clear and signed by all parties so there's no confusion.

So the more tax you can defer over time the more income you'll make over time from the deferred tax.A 1031 does require the use of an unrelated 3rd party to the transaction called the qualified intermediary. 

It will also originally serve to provide a framework to use in gathering and inputting the assumptions and quotes you ask for and receive from perceived informed parties.