Speed, convenience, trust, and reliability of pursuing their goals with a trusted advisor.This statement makes you look like a shill to push your paid service or crazy.

Pair with a channel manager and start pushing those properties to more than just Airbnb. 

Even then so, you can deprecate the value of these improvements (sometimes over a very short period of time, even 1 year) so it maybe a wash.

Also because the buyers agent is getting paid a flat fee, they will actually be honest with the condition of the house instead of tryin to push through a sale for commissions.

I have a bit of ADD so having someone push the thing to close successfully is useful as well.

You should certainly start the process earlier than maturity, especially at the very least within a couple months of the maturity date - there can always be things that cause delays and pushes and even missing the maturity date by a couple weeks can have harmful consequences (since it will technically be a default / missed payment even if the lender is OK with it).Also, commercial loans even with the strictest prepayment protections / lockout periods will almost always have at least a 3-month open period prior to the Maturity Date

So we (wife and I) are ready to make that final push towards retirement with long term buy and hold properties!!

I had the feeling as an outsider the locals have seen this many times before and they orchestrated most of the drama they pushed on our buyer.  

Those costs get pushed onto the customer.

You will be doing a lot of cold calling or sending cold emails to landlords, there will be a lot of no, but keep pushing until you get a yes.