How is it accumulated, and how is it used to achieve the WHAT goal exactly?

@Nick Burrell recommend you start looking for "deals" that you can sell to other investors.This will force you to learn how to find them AND evaluate them.You'll generate commissions you can accumulate to start flipping.

Once you accumulate a good amount of knowledge, the key at that point is to move from learning towards taking action.

Cash balances that accumulate in checking from monthly rents usually receive $0 or very low interest.

I honestly wish I had done that before accumulating 30 doors.Not really. 

Hello, I am completely new to real estate investing and was hoping to find out from people who have been in the game for a while what a realistic earning potential would be from accumulating long term rentals over time. 

I would use cleaning services but it's my understanding I could use more than one company over the course of the year to limit how many hours one company spends on it.I'm looking into a utilitarian STR more for business travelers, so this won't be one where everything is perfect, it's bound to accumulate wear and tear I think.The STR would be out of state, but I plan to travel there for probably two weeks a year where I would perform many repairs myself.

Back wall adjoining neighbors are starting to accumulate junk up and piling up and over the fence.

It should be what it is now in which is the delinquent amount plus any additional  fees accumulated.   

I’ve had investors that initially bought SFRs in CA and accumulated about $400k - then sold the properties and now are actively buying fixers, small homes and value add properties where they use the $300k to purchase and improve and make between $200k to $300k per year in gross profits when selling a renovated or improved property.