Real estate · · 7 min read
Buying a home with a friend or sibling: what to agree in writing
Buying a home with a friend or sibling: the five questions to settle in writing on shares, costs, exits and disputes, before the deal and the lawyer.
The coffee had gone cold by the time someone at the table said it out loud: "Let's just buy together. Neither of us gets to a down payment alone, but together we do. What's the worst that could happen?" Across the table, a smile. A warm one, a little tight, from someone who knows that question has answers and would rather not hear them today.
Prices are bringing more people to that table: siblings, school friends, cousins. The equity that looks impossible for one suddenly looks reachable for two. Then comes the sentence that closes the subject: "We trust each other, we don't need a contract." Or its polite version, a standard form nobody read to the end. Others drop the idea altogether, just to avoid a fight.
Part of you wants to finally get into the market and build something with someone you love. Part of you would rather not ask "what if", because the question itself might sour things, as if whoever asks is already planning an exit. That silence protects something real: the friendship as it is right now. Both wishes are legitimate. This article won't tell you whether to buy with someone, or with whom. It lays out the conversation that lets you buy together without gambling the friendship.
"We trust each other" is not a co-ownership agreement
This conversation keeps getting postponed, and not because of you. When something good begins, its ending is hard to picture. In a 2011 review, the neuroscientist Tali Sharot summarised what researchers call the optimism bias: people underestimate the odds that bad things will happen to them in particular. A wedding, a move, a lost job, a baby. Each is likely enough, and over coffee none feels like yours.
And co-owning a flat is not sharing a life. A couple has a joint account, joint goals and a money conversation that comes back every month, the way a couple's shared budget describes. Co-owners have none of that. Each of you runs your own household on your own budget, and one day one of you may want, or need, to get out.
Leave things unagreed and the decisions don't disappear; they fall to the general rules. Israel's Land Law (חוק המקרקעין) covers joint ownership and the dissolution of co-ownership, and the basics are explained on the Kol Zchut rights site. But those rules weren't written for you, your friendship, or what you agreed over a handshake five years ago.
A written agreement isn't a vote of no confidence. It's what lets you keep trusting each other when circumstances change.
The same moment, two ways
| Aspect | A handshake | Five written answers |
|---|---|---|
| One owner wants to sell | An argument about what "we agreed" | Open the page and read what it says |
| Someone misses a month | Awkward silence | An arrangement set in advance |
| The water heater dies | Whoever was around paid | A split already agreed |
| A dispute over the flat's value | Each brings their own number | An appraiser chosen in advance |
A handshake
- One owner wants to sell
- An argument about what "we agreed"
- Someone misses a month
- Awkward silence
- The water heater dies
- Whoever was around paid
- A dispute over the flat's value
- Each brings their own number
One page, before you meet the lawyer
What you're after is modest on purpose: five written answers, read and signed off by everyone, before the meeting with the lawyer. You don't need to know any law or agree on every detail. Anything you can't agree on becomes a question for the lawyer.
What it does ask: not putting off the "what if" talk until after signing, when there's money on the table and a mortgage in both names.
The five questions of joint home ownership
Question 1: How big is each share, and how is it set?
People rarely bring the same amount. Say one of you puts 300,000 ILS toward the down payment and the other 200,000 ILS, and you split the monthly repayment down the middle. Is the share set by the down payment alone, by what each person pays over the years, or by a mix? What happens when one of you prepays, or covers more in a given year? Write the rule in one sentence, and next to it an example with your own numbers.
Question 2: Who pays for what?
The repayment is only the first line. There's the building fee (va'ad bayit), municipal tax when nobody lives there, insurance, repairs, and every few years paint or a new water heater. If one of you lives in the flat, the big question is whether they pay the other rent, and how much. Easy to skip today; hard to raise in a year.
Question 3: What happens when someone can't pay?
Not because anyone is unreliable, but because people lose jobs, get sick, go on parental leave. How long does the other person cover? Is that a loan between you that gets repaid, or a change in who owns what? And who talks to the bank when it has to be done? And remember: the agreement between you doesn't change what each of you signed with the bank. What the bank can ask of each of you is a question for the bank and the lawyer.
Question 4: How does someone leave, and who gets first say?
Is there a minimum period before anyone may sell? If one of you wants out, does the other have a right of first refusal on that share? How is the price set, and how long is there to complete? An appraiser chosen in advance means nobody shows up on the day with a number of their own.
Question 5: How do you settle a disagreement?
Before lawyers and courts there are quieter steps: a meeting with the page, mediation, a professional you both accept. Write down the first step, so that mid-dispute you don't also have to agree on how to argue.
With five answers in hand, you go to a lawyer, who drafts. Choosing a real estate lawyer lists what to ask them. Purchase tax and the mortgage depend on each person's situation; check them at the official source, as the purchase tax basics explain. A lawyer drafts the agreement; the decision is yours.
Five questions, one hour together
0 of 6 done
In AlphaHome: On the properties page, each of you can record the flat and the mortgage in your own household and see how much of it is already paid off. The page has no field for each owner's share, so the written agreement holds the split, not the app: net worth will include the whole flat, and that figure is not your share. When you run the flat's costs in a shared household, you invite your co-owner by email and set access for each page (hidden, view or edit), and the dashboard shows who recorded each expense.
When life moves and the partnership is tested
Three years in, one of you is getting married and wants out. The other isn't ready, financially or emotionally. Back to the table: This isn't the partnership failing. It's exactly the scenario you wrote about. Today: open the agreement instead of the argument, and book one meeting with the page on the table. Next time: a short yearly meeting to reread the agreement and check whose life has changed.
Halfway through question three, someone takes offence: "So you think I won't pay?" Back to the table: The question is about circumstances, not character. Today: pause, say that out loud, and move on; mark question three for the lawyer. Next time: open the conversation with each person saying what they're worried about, before you reach the clauses.
One of you paid for a repair out of pocket, and nobody wrote it down. A year later there's a feeling that someone is carrying more. Back to the table: A feeling isn't a number. Today: record what you remember, with a date and an amount. Next time: every cost of the flat goes into the shared household the same week, so you're all looking at the same page.
What keeps the friendship after signing
What holds a co-ownership together isn't how much you love each other. It's a page with five answers, a lawyer who turned them into an agreement, and one place where everyone sees the same numbers.
A handshake partnership usually ends the way handshake partnerships end: with a hard conversation nobody prepared for. A written one can end with an ordinary conversation.
"What if" doesn't threaten the friendship. It's what lets it survive a wedding, a move and a sale. Co-owners who wrote the answers before signing never have to choose, on the hard day, between the flat and the friend. Whether to buy together stays your call.
This week: sit down together for one hour and write an answer to each of the five questions, marking anything unresolved for the lawyer.
Do one thing this week
Open AlphaHome, record this month's income and fixed charges, and see how much is really free to spend. Everything in this article starts from that number.