Rent was due by 5th but no communication on late payment and is not responding to my text/emails. 

At closing, the buyer and their lender determine whether the credit will reduce down payment, closing costs, or as a credit.5.

Looks like Paramount is under Federal investigation for having failed to make agreed payments. 

Financing: I'm confident I can put $10,000 down as a down payment within the next year.

I jumped into real estate doing the BRRRR method, understanding that holding property will allow me to build generational wealth, but then learning that landlord income is not the best way to feed your family.

If it’s verbal, they’ll need to document any prior communication or payment records to establish the relationship.If the PM is completely unresponsive, they may want to send a formal written demand for communication and payments via certified mail.

What % of purchase price is smart to put as a down payment? 

I know that when I’m buying a loan, I’m buying the future payments at some price.

What property management software or tools would you recommend for tracking rent payments, leases, and maintenance requests?

We will either bring on another investor each year to make the yearly payment or we will just forgo the income payments to the partners and make the yearly house payments out of the cash flow if we just want to keep the property with only 7 investors.