I would say that if the second car blocks you, certainly don't allow it.

However, let's go back a step. Did they "notify" you, not "ask" you to let them apply?

Did you request / receive / process / approve applications from all of them?

If the answers are Yes & No respectively - you have a bigger problem than you know. You have allowed them to have control over your house.

Rule # 1) The Landlord is in charge

Rule # 2) The Tenant is not.

You can state no parking. You may want to check with an attorney but I'm thinking that if you are allowing the one to park there you may end up NOT being able to tell them no from here on out but I don't know how your paperwork is written up.

You CAN state that the other vehicle cannot park there though.

Are they in a lease or month to month? Who is paying for what (meaning, if you are paying utilities, you can "up" the rent for additional people - but again, check with your attorney on that). If they are month to month then just end the tenancy or jack the rent up (depending on where you are and how long they have lived there).

Next time don't just assume you can't say no to relatives ... now you have 5 adult people living in a 3 bedroom house. You can state how many people "max" are allowable.

I own a duplex with a narrow driveway to the rear garages built in 1934 when cars were skinny. Very few of the modern vehicles would fit down the driveway. So only one car can park in the driveway close to the street.

My long term tenants are an elderly couple in their late 70's. I gave them use of the driveway for parking, except when I need it when making repairs.

In comes a new tenant where the lease clearly states that the driveway is off limits to the new tenants. The driveway is for the elderly tenants, gardeners use and for my occasional repairs.

The new tenants started to use the driveway to unload their groceries when the driveway wasn't in use and left their vehicle there over night in some type of protest. The old tenants are afraid to make the new tenants move their car. I told the old tenants that they have to speak up.

So I posted "Assigned Parking Spot/Towaway Zone" signs. Then I signed a contract with a towing company that a phone call to them will get cars towed in less than 1 hour.

On a Wednesday night I got a phone call about a furnace not working. SO I sent texted message to both tenants that I need the driveway the next day from 10 AM to 2 PM. The next day I drove to the property with my work van, 12,000 pounds loaded with tool and supplies. The driveway was taken. The new tenants parked their car then and forgot to move it. Also my gardeners were they having trouble getting the trash cans from the backyard around the vehicle and put on the curb for trash pick up.

I called those tenants and no one answered the phone. So I called my towing company and had the car towed. There was no parking on the street and I didn't want to park my van blocks away. You can always find a parking spot if you get up before the work day when people leave for work around 7 AM.

"I live in a duplex and rented half my house out to two guys. They are renting a 3 bedroom apartment."

Are you in one half of the duplex and you've rented out the other unit of the duplex to two guys? Or are you in one half of the duplex, and you've taken in three lodgers to share your unit with you?

"(The two guys) notified me that one of their brothers and his two adult sons would be moving in. I allowed that as I believe the law doesn't allow me to restrict this."

Ummm, that's what your lease does--- it restricts who's allowed to live in the property you possess. People can have visitors, but there's a difference between someone stopping by for the weekend, vs being there for a week or three, vs being there permanently.

And as an owner-occupant--- whether you've rented out one half of your duplex, or you've rented out a three-bedroom apartment within your own unit--- you've got more rights than most of us who merely rent out properties in which we don't live.

You need to get rid of all of them. Although, if you've allowed it, it now becomes difficult to say, "Oh, I changed my mind..."

Once upon a time, I rented out a teeny little 1/1 to him, her, and their newborn. I was trying to be accommodating, since they had friends-with-a-truck who were helping them move, so I let them move in with just her signature, because he was at work. I went back the next day to get his signature... and discovered that they had turned the living room into a bedroom, and the occupants were now him, her, their baby, his two kids from a previous relationship, and her kid from a previous relationship. They were instantly terminated for lying on their application, because they had known if they had applied as a family of 6 for a <500 sf 1/1, they would have been rejected.

You rented your 3-br apartment to a party-of-two, not a party-of-five. And I presume you only screened and approved two adults, instead of screening and approving five adults.

My lease specifies an up charge of $150/month/person if people are added to the lease. (With the exception of children, although my lease does not specify that) All adults must also fill out an application and be approved, just as any new tenant.

Your don't have to allow additional parking. If you choose your can let them decide which car it is. Since you indicate you made a verbal agreement it would be non binding. My lease states all communication in writing. Where I have driveways it refers to separate driveway agreement. And no you do not have to accommodate an ev plug. Lock your basement now if it's not and the attic.

I world agree that the brother doesn't fit the family member criteria. I believe that to be parent /child relations.

And while you collect section 8 rent don't receive any other funds from them outside of s8

"I told them no originally, but relented since I think the law is on their side."

A land lord who doesn't KNOW the law is a danger to himself and others. Step 1: correct this. Pay an attorney if you can't or won't do the research yourself. Your #1 job is to know the law and follow it. Don't guess, don't wait, don't dither: get it done.

Second thing: don't say things or put them in your lease unless you are prepared to enforce them. If you don't plan on charging $50 per person, then delete that line out of your lease.

As it is, you have what we in the military used to call a "Cluster". Time to uncluster. Time to take back control.

Send your tenant notice regarding your lease agreement and how many people are permitted to live in your unit. If they fail to comply, issue notice of non-renewal immediately. Even if their lease doesn't end for 8 more months, there is no reason to wait. At bare minimum, set a reminder in your phone for 90 days from the lease end date and sent it then, or send a reminder if you send one today. Do not miss your time deadline on issuing notice.

Also, let the tenant know you will be contacting Section 8 and inform them more people (unauthorized) are moving in without your permission. Vouchers are usually issued based on the number of people living there, and if any of them have wage earning capacity that may reduce or eliminate your tenant's voucher. This gives you some leverage with your tenant, if he's smart and wants to keep his voucher.

This is another reason I don't take Section 8. "Guaranteed rent" (heh, I have a story about that!) isn't worth dealing with entitlement mentality tenants that feel your lease is a doormat on which to wipe their muddy shoes.

In addition to what the others have already said you need to learn & follow Aldo's two rules of Landlording.

#1. The Landlord is in charge.

John, unless there is some special local law, the eviction moratorium really only applies to non payment of rent eviction not for other lease violations.