Personally, I would recommend NOT borrowing from friends/ family until you have enough deals under your belt to feel confident in your investing abilities.  

Many smart devices offer the ability to create guest accounts with limited permissions.

I overestimated my ability to get it done more quickly.

If you have the ability to self manage the property I would look to purchase a duplex that is close to you.

However, putting properties under contract with no ability to close?

And could it negatively affect my ability to do these deals in the future?

Not only does that put you at risk of wasting massive amounts of time, but you may end up being known as the buyer that doesn't close, which could harm your ability to see other deals earlier than other investors.

I believe that you will have the ability to raise rents even higher over the next 2 or 3 years which should improve you cashflow, especially after you move out and rent out the 4th unit.

Not looking for any type of commission just the ability to learn and see someone do it first hand.

You may be leaving money on the table by just making an offer and not seeing where you can solve their problem.Ex: they may not have the ability to do the probate in which case a lower offer with you covering the cost and walking them through the process may be in order.