I suggest 6 months of expenses to keep in cash.

Typically they charge a percentage of the amount saved. 

Let's use that as an example. 20% down is $43,000 plus lender loan origination fees, closing costs etc is going to push you over $50,000 cash out of pocket.

One time we bought a bulk amount of local fudge and taffy that lasted a while. 

. $300sqft to build at least.If you have any sort of mortgage on the property you will need an attorney to handle the mountain of paperwork the bank will give you for a lien release. 10k+, also probably some nightmare terms to have to build and sell immediately and god knows what.At this point a year has passed and you have spent at least $60,000 cash, you're about to break ground on a structure that will cost you at the very least $400,000 to build, you are still 1 year away from cashing out because you have to now build a house.

It seems to me that they all whether paid of free, will all have the same exact amount of houses because all the transactions are all public and so they seem to compete with each other based on the quality of the data of the houses, how up to date it is, and the user experience in configuring the how the layout is.

I'm a total newbie myself, but I've been doing an insane amount of reading and research via youtube etc. 

Seriously, it's important.And as mentioned above, the amount of rent you receive on multi-family properties is based on 12 month rental comps.  

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.

Always smart to see the bigger picture and future cash flow potential!