They want to hear from a local down the block, not a fake company.

I bought the cheap lowes light blocking blinds. 

But if there is a chance that the previous person could have done something and it just became dislodged and blocked it, no. 

Neutral colors work well, and energy-efficient upgrades not only attract buyers but can also qualify for tax benefits.

Above those two, scheduling and time blocking are usually where people are failing.

Of course, your specific block may be higher or lower.

You can only play games for so long.Chances are your next door neighbor is an IRS agent and turns you in when your tenants blocks their drive or some other random event disturbing your IRS neighbor.ADU catches fire and your insurance won't cover you, because it was an illegal and unpermitted structure.The city inspector told the last guy not to build or rent it, and is now pissed and wants to make an example of you and just red tags the whole property and no one can occupy for the next 1-2-3 years while you wait for a hearing.Then when you get the hearing, "staff" recommends you tear the whole structure down, and if you still want an ADU, you can apply for a permit and rebuild it.Your tenant quits paying rent and won't move out and you can't evict them, because there is no valid lease and they're just your "roommate".Probably a dozen other bad things can happen to you when you do stuff like this. 

Quote from @Jay Hinrichs: Bruce there is also that famous case in San Fran  in the Seacliff area of 5 to 30 mil homes and someone bought their right of way on a small private street and were trying to block them off and then of course sell it back to these folks.

I have an up-down duplex a few blocks to the west in the Sheridan neighborhood - both units are 1+Den/1BA apartments. 

The ones I’ve come across are in areas with boarded-up houses throughout the blocks, which I’m not quite ready to invest in as a new investor.