You might consider giving a notice to the entire building that you will be doing a walk-through on a certain date to check the condition of the property - you have a right to maintain your property and access all units if they are home or not with proper notice.Also, make sure that your notices have a person named as UNKNOWN OCCUPANTS listed.

Your agents will have to work closely with you to make sure no guests are interupted but the buyer has access to the home and you close on a date with no guests that day and the following few days while they go in and take inventory, set up utilities etc. 

Non Premier hosts, same minimum restrictions, crap photos, mediocre reviews and yet that are on page one.

Do your tenants have access to thermostat?

Of course, with all things, the answers to all these matters will depend on the circumstances.California tends to have more laws on the books and requirements and restrictions that it can be a good idea to form a CA LLC for out of state property so that you as a CA resident are covered, and to try to have your contracts fall under the purview of CA courts.

If the building does not have direct access into each unit is there a remote access system for tenants to allow guests in?

You talk about financial security in retirement, but if you put this money into the house it is not accessible to you if a need arises.

Its also on septic and may need road access.

.- BP just acquired a syndication forum and will be providing access soon. 

If its PA I can do it, I am a broker that has access to a few DSCR low loan amount investors