So not looking to become some overnight millionaire just simply supplement my lifestyle and see what happens.

Umbrella insurance is supplemental to regular insurance.

A simple, low cost method...especially if it is only a problem for a few months out of the year...is window units (for heat or a/c) or baseboard heating, to help supplement the temperature provided by the HVAC.

I've searched online but can't find any contact info for US Bank aside from the generic customer service number. 

I have been running numbers generally forecasting 750 for a master, and 650 for all other bedrooms in the home for a generic good condition home in the Smyrna, Marietta and Roswell areas.

If that doesn't work put in an offer in a home after you have done a generic scope of work based on your knowledge.

Garage apartment we're renting on Airbnb actively managing all aspects to supplement monthly income and pay for home mortgage.

Depending on your area of interest there are some great books by J Scott and Brandon Turner that can be purchased on BP or Amazon as a supplement to reading in the forums.

I have money saved in a brokerage account doing okay with some mutual funds, want to start doing REI to supplement income and create possibilities.  

Don't make your mailer seem too generic.