ORDo you think it is better to sell and invest that money in something that would gain interest or profits over the next 7 years?

First, you can't take advantage of the economies of scale like you can in a bigger facility....meaning that as you expand, your revenue will increase faster than your expenses which will have a positive effect on profit. 

I am willing to sacrifice some potential profit in order to get my feet wet and begin to build my team.

(Commissions are negotiated).I’ve had trouble getting my investor buyers showings on commercial properties because agents can want both sides and simply make property showings hard.If you have a trusted friend who is an agent in the business he or she can help negotiate for you especially if you need to ask for repairs or get out of the deal

@Jimmy Dudley  its sort of depends on where you live and closing customs.for instance on the west coast there is no such thing as a wet closing.. or having all parties come to the closing table.. simply never happens.so when we sell something here I usually go in and sign ( if I want to I can also just have them e mail docs and I sign and they send a courier to my office.. )this is done 2 to 10 days before closing.. then the buyers come in the 3 days before usually because they have their 3 day right of recession ( owner occ mortgages)  then the loan package goes back to the lender.. then the title company has to record in the morning.. and has to send recording numbers to the lender then the lender funds.. then the next day once this is done title company will cut checks or wire proceeds.. for us 100% wires we never get checks.. its always kind of comical when I am sitting in my office in Oregon closing a deal in some east coast state and the closing attorney sends me an email with the time of the closing and wants to know if that time is good for me like I am really going to be there..

I want to know how the ‘Total profit if sold’ fields are calculated.

The interest would be deductible from rental profits, but would be taxed as interest to you.You should speak with an accountant who can get the full picture of your situation and help you decide what the best option is.I will say, that most people here on BiggerPockets, including myself, recommend keeping things as simple as possible starting out.Best of luck!

So your going to hear a lot of different strategies on here however you have to find what works best for you and master it.You will hear all the Millionaire Real Estate Gurus say the #1 most important asset to have in this industry is being able to find deals.In my opinion the fastest way is "Door Knocking" just simply ask the homeowner directly have they thought about or thinking about selling their house period.

It's simply a matter of whether public sewer is available or not.When doing a rehab, we budget $35,000 for a Title V septic and hope for less. 

All depend which program fit your need and will profitable to you as an investor.