Best to use Mail Boxes Etc. or a UPS store for your address as they actually give you a mailing address rather than a PO Box.

So we went to stores together, she made me some design boards to look at, and sent me online links. 

Again, the BiggerPockets store has some books for this or you can learn by watching podcasts, reading blogs, and interacting on the forum.

What communication, if any, is allowed between me and the tenantDocumentationHow are documents organized and stored regarding the properties and leases?

Again, the BiggerPockets store has some books for this or you can learn by watching podcasts, reading blogs, and interacting on the forum.

Look at stores for Garage floor Epoxy.  

TEC is another good mfr and is in the big box stores. http://www.custombuildingproducts.com/media/60712309/tile-waterproofing-wp135_5-16.pdfMain site:http://www.custombuildingproducts.com/reference-library/white-papers.aspx

The might have insight to the shades that aren't super loud and overpowering versus what you think might work best.As a general rule, I find that right color on the wall is usually 3-5 shades lighter than the color swatch I like in the store.

They have a restaurant, convenience store, and other additional amenities to help boost their revenues. 

Also you can find crews at the local hardware stores, a lot of times the owners know the crews that have been around and seem to know what they are doing.