Since I have no saving or a sufficient credit history I figured wholesaling would be my preferred option.

I would submit this is the case even if you are sufficiently scaled to have a full time handyman.

Properties with non-sufficient parking for all residents is a no go for me.

As a Trustee, I have postponed a sale at the courthouse steps just prior to opening the sale with an attorney handing me certified funds sufficient to payoff the loan plus all costs, that doesn't happen very often.

Also try to rent to self-sufficient and "hands on" tenants.

When the 5yr balloon payment is due, will a 5yr positive P/L ratio likely be sufficient to refinance the property?

When the 5yr balloon payment is due, will a 5yr positive P/L ratio likely be sufficient to refinance the property?

There'd have to be sufficient reason for them to sell and you to buy. 

It was confusing to me whether a salesperson's license was sufficient if you managed properties as an individual.

Gives you sufficient time to check out all the features and faults of the house.