The exact application can get complicated and there are many exceptions (e.g. restrictive covenants in employment contexts have special rules).

There can be maximum size restrictions as well. 

@Kai Van Leuven Best place to start is talk to the city / county about zoning restrictions.

But I think an actual check as a gift would be odd and crossing the line between professional and personal.The reason I'd opt for a nominal gift is because landlording is a "people" business and getting married is a major milestone in someone's life.   

I already kindof know what I want to do to generate leads and find possible deals im just in a bit of an odd location situation.I am currently active duty Air Force stationed in Del Rio Texas, as I have been reading and absorbing information I have been planning on starting my REI career/hobby when I get back to my hometown of Melbourne Florida.

I think the only restriction on this would be your ability to actually execute the lease.

Here is an odd one that we've come to learn -- not sure if we're the only ones who have experienced this. 

I think the odds of you running into one of those types of dogs is extremely low...

The odds are too low. 

Basically, there may be limitations or restrictions that result when you separate property ownership from property management.