| Document / cost | What it is | Why it matters |
|---|---|---|
| Lease | The binding contract for rent, term, and rules | You are on the hook for the whole term, not month-to-month, unless it says otherwise |
| Security deposit | Upfront cash (often one month's rent) the landlord holds | You get it back only if the unit is returned in good shape, so document everything |
| Renters insurance | Coverage for your belongings plus liability | Roughly $15-25/month; the landlord's policy does NOT cover your stuff |
| Roommate agreement | A written split of rent, bills, and chores | Prevents the most common roommate fights -- who owes what |
Your security deposit is the landlord's by default unless you prove the unit was already damaged. On move-in day, photograph and date every scratch, stain, and dent and email it to the landlord. On move-out, leave it clean and request the deposit back in writing within your state's deadline.
Three clauses cost first-time renters the most: (1) the term -- a 12-month lease means 12 months of rent even if you leave early; (2) the early-termination and subletting rules -- know your exit cost; (3) what counts as 'normal wear and tear' versus a deductible damage. If a roommate is on the lease too, you are usually 'jointly and severally liable,' meaning if they bail you can owe the FULL rent, not just your half.
Make the worst-case concrete. Alex and Jordan sign a 12-month lease at $1,500/month, split evenly -- $750 each on paper. Five months in, Jordan loses their job, moves home, and stops paying. Because the lease says 'jointly and severally liable,' the landlord can come after Alex for the full $1,500/month for the remaining seven months -- $10,500, not Alex's $5,250 'fair share.' Alex's only options are to find a replacement roommate fast (and hope the landlord approves), or to sue Jordan later for the half they paid on Jordan's behalf. Read this clause out loud before you sign; if it is there, only co-sign with someone you would lend money to.
Sit with the ideas.
On move-in day, what is the single best thing you can do to protect your security deposit?