Billboards are new animal to us & their potential is a gray area to me. 

Two very different animals.

Rent control is a strong indicator of an intrusive government: Google search.Income reliability is dependent on the behavioral characteristics and occupations of the tenant segment who occupy your property.

Another thing to learn is that different markets have different characteristics. 

Remodeled a house before that had several animals as pets in the house (dogs and cats both) the animals were not let outside to use the bathroom (from what it looked like ever) we sanded down the hardwood filled a pump up sprayer with the odorxit (super contracted stuff mix as stated in bottle) sprayed all of the floors till they were soaked with it then opened the windows to let it all air dry.

We just help steer them in the right direction in terms of what characteristics each LVP product comes with.

For a land to be considered ag do we have to satisfy certain 'requirement(s)' such as keeping certain number of farm animal on that land at all times or having ag plants being grown on it? 

From my personal experience I’ve had most success acquiring MLS properties that have underlying characteristics such as favorable zoning, incorrectly listed square footage or other attributes that are either incorrectly represented or not effectively marketed.

The main characteristics were that the exterior walls were constructed all at once with the same stud running from foundation to roof and the floors or levels were hung off of a cleat that ran around the structure cut into the vertical stud.

in simple term:the sum amount of money in being circulation is always going to increase the residential real estate valuation as it has limited supply as hard asset and increased demand.rising amount of money is equal to higher inflation, but whether the dollar rising or not it depends on interest rate, whether it's higher againts its peer (if rate is higher then it causes more expensive dollar thus higher USD), and vice versa.in other word, the more inflation it is, the more expensive real estate would be.you can see the same characteristic in other country as well.