If the wire is aluminum and in conduit, see about replacing the wires with copper.

Of course I think the tree is the source, as I do not see any other conduit to to property.

Brokers could hire Bonded, Insured, back ground checked, polygraphed, "Mobile Notary" type Facilitators  who meet buyers at listings, escort the buyers through the property and act as an electronic conduit to the broker during the showing, utilizing FaceTime or Skype.

Over the last 8 years, I’ve worked for two large financial institutions originating debt for multiple capital sources including Balance sheet/portfolio, Conduit, Agencies, as well as Bridge/ Mezz/Pref Equity through an open-ended, leveraged debt fund.

It will also depend on whether you are having this done for you or if you are going to be the one swinging hammers, bending conduit, and hanging drywall. 

Did they plan to run a circuit to each room and then use surface mount conduit?

Its even possible for trickier runs to be done on the exterior in conduit, of course thats not ideal and in some situations not possible.

Is it typical that the gate installer will install the keypad and gate and run conduit, and leave the connections available, and then you contact a separate software company to wire up the computer and software to control it all? 

If it was run underground you would hope it's in code compliant water proof conduit. 

Just like Life co's, you can access agency debt through a commercial loan broker, so take the time to find the most experienced MHP broker.Conduit (CMBS) - Conduit went away for a bit during the COVID onset, but they are back lending again.