Coordinate all non-emergency repairs with my Project Management Company and our assigned handymen for execution

heynot sure if this is the correct sub-forum but i'l give it a go. planning on buying a property, long term rental, all cash. now, say i have around 500$ coming in to my account every month (this is in theory, after all expenses are paid and taking into account vacancy, small repairs, capex etc'). current plan is buy a property every once a while (at least every 2 years, could be less once mortgages will be an option for me, non us citizen starting to invest here. talking about properties in the range of 60-80k). letting the money sit in the account until i buy my next property does not seem optimal to me, but on the other hand investing it in the stock market or something like that does not sound good either because i will need that money in a short period. perhaps i'm overthinking it but i'm trying to see i'm leaving any money on the floor so to speak :)what do people around here do? 

Not only building the pool but maintaining the pool, paying for repairs & electricity, etc?

Since I consider the calibre of a tenant that does not have a bank account as being of lower quality I assume they will not be reliable with paying rent on time.

I made a deal for all four properties (3 singles occupied at $700/ month and one vacant double that needs $30k of repairs) for 100k.

That area is a quality B class neighborhood and in the Pittsburgh market you are not going to get much cash flow plain and simple. its a long term buy and hold strategy.

And between putting away money for repairs/vacancy.

(I already provide a safe and quality home for a reasonable price.). 

VRBO/HomeAway allows you to have up to 50 and rewards you with better search rankings for having more high quality photos.

DO NOT over promise to make repairs for tenants that they do not request.