Mini splits are ductless (air sourced)heat pumps.Depending on what you are trying to to accomplish they can be thousands of dollars but typically not.Keep in mind they can only provide heat usually efficiently to only a certain temperature since the condenser unit is outside and has to extract heat from the air, so if it's literally zero degrees outside it's going to be harder for it to extract heat.  

If you have a full time job and a family you have to consider do you want to be spending all that time and energy rebuilding your investment property that I'm guessing was intended to be a passive investment to some degree?  

Bryant Schur for me it is the freedom to know that I have control of my ceiling, not a job telling me that I can only make this much money without this degree or certification.

do I need to get a license in real estate also do I need to go to college and get a degree

Luckily my Economics Degree and shadow experience with other investors help me buy it right, and we didn't loose any money when we sold it (I was cash flowing through rent WHILE we rehabbed it #doubledip).Fast forward a few years, I bought a few more deals (mostly out of state) that were minor fix-n-rents.

Came home bought a house to rehab, got married, started having kids, got a tech school degree, landed a career, and became the first of my family to ever go to college much less graduate with honors.  

I go my license after I finished my marketing degree from Oklahoma State University.

@Cary Ferguson JrI generally get a lot of people worked up due to the fact that I rarely buffer my comments except to the degree that I want to avoid being banned from the site. 

I got my degree in Business Finance but have been extremely passionate about real estate for a while now. 

Maybe if you're working with out-of-town buyers a lot I suppose, but I haven't run into any problems doing this so far.Anyway, one thing I picked up from Sean Terry was to do a quick and dirty estimate based on the overall condition and the square footage, so you multiply the square footage by $8 if the house is in great shape, and $20 if it is totally trashed, and then you have degrees in between.