I would not acknowledge the renovation noise if it was not unreasonable or excessive. if it makes it easier you can tell them that you were going to raise the rent to $40 and choose to only do $20.

If she's wanting to put it in because she's using the room a lot as are her dogs causing excessive wear, I'd let her. 

There are many reasons why it could get to this point but it’ll likely sell for close to market value anyway and the owner will get the excess.

If on the other hand you don't mind them staying for a couple of weeks( seems excessive a week would be better) then withhold enough money in escrow that they don't get until you do the final walkthrough.

If we spend everything we make, we're not building up excess capital to invest with.

Knowing nothing else about you, I would suggest that you either find a way to make more money at your current job by increasing your production to fit your excess time, or make a jump into an RE field that will take 100% of your capacity.

The excess money that you take out from this property will be used as source funds for the next property.

What you're probably trying to convey is that your personal address was used as your regular business address.Generally, you shouldn't use the registered agent's address as the regular business address if you are paying a third-party registered agent, as they usually have a limit on pieces of mail received per month or per year and charge for pieces of mail received in excess of that. 

My hometown moves the excess cost of recycling on to the residents versus forcing everyone to subsidize it to make everyone feel good.

Because of this, we have well in excess of our 1 year reserves for this property.Our belief is that this is a growing area.