I drive back to these properties and search them on google maps to make sure I did not put in the wrong street number/name.

I could be wrong, but I believe there are very few areas within the Denver metro that actually allow STRs at all.

You'll want to form a Tripod Team: Agent, Lender & Property Management Company (PMC).Agents & lenders are transaction based, so few of them will really "be there" for you if something goes wrong after a sale.

Two more things for investors to know: Calling the agent to stop the appraisal was wrong move.

@Matt Parker you are in sticky territory here and if you do anything wrong, and the tenant pushes back, you'll lose in court.There are 4 loopholes to SB 608 on why you can terminate a tenant.

I don't think it's fair for him to add additional costs without my approval so I told him I would pay for the extra material and his labor but not the additional items he added which I think is completely fair. now he is saying he will send me to collections to collect the full amount am I in the wrong or is it justified? 

Yes, your calculations are wrong

I’m a broke college student and I’d like to buy and sell without dad’s money.My sister tells me it’s rare that I’ll succeed.Is she wrong?

Go by what @Nathan G.has and you can't go wrong.

I'm an older guy, so I aplogize if  if I'm saying anything wrong.