For example, learning how to navigate CRMs like HubSpot or property management platforms like Buildium could be a big plus.

Real estate agents, property managers, and contractors who specialize in your target market can save you time and money in the long run.

I went in one day and manager asked if I would be interested in buying a shell that was in default.

I think the LLC also makes it easier to open a local bank account, which is convenient to pay utilities or other local bills or your property manager, etc.  

I'm looking to gain momentum and scale fairly quickly.I'm going to try rentredi and quicken to manage the numbers.

Check out PMW, Property Manager Websites

Their previous company Amplify My Business has the same horrible reviews and scam so they closed down and started the new scam called Launch Your Leads managed by Matt and Tom Mclleland.

As you suggest lowering down payment to buy more properties is one way, although the downside is greater risk in event of down cycle and more time to manage required.  

I’m not going to replace toilets for that, but when the time comes and they need to be replaced I will replace with old school toilets that can manage the crappy situation.

that we’ve learned in our 24 years, managing almost 700 doors across the Metro Detroit area, including almost 100 S8 leases:Class A Properties:Cashflow vs Appreciation: Typically, 3-5 years for positive cashflow, but you get highest relative rent & value appreciation.Vacancy Est: Historically 10%, 5% the more recent norm.Tenant Pool: Majority will have FICO scores of 680+ (roughly 5% probability of default), zero evictions in last 7 years.Class B Properties:Cashflow vs Appreciation: Typically, decent amount of relative rent & value appreciation.Vacancy Est: Historically 10%, 5% should be applied only if proper research done to support.Tenant Pool: Majority will have FICO scores of 620-680 (around 10% probability of default), some blemishes, but should have no evictions in last 5 yearsClass C Properties:Cashflow vs Appreciation: Typically, high cashflow and at the lower end of relative rent & value appreciation.