Many new landlords feel relief when someone asks to rent and agree quickly for fear of vacancy. Yet the damage from an unsuitable tenant is usually many times worse than another month empty: unpaid rent, repairs, time spent chasing, and in serious cases a slow legal process. Systematic screening isn't discrimination or distrust; it is the risk management professional owners treat as standard.
The common guideline is that rent plus regular costs should not exceed about a third of the tenant's monthly income. Tenants spending over half their income on rent are at high risk of paying late when unexpected costs hit. Where an employer pays the rent, sign with the company or obtain a company letter — risk falls sharply. For students, have a parent sign as guarantor.
| Signal | Possible risk |
|---|---|
| Unusual urgency; wants to move in immediately without checking details | May be escaping problems elsewhere |
| Offers months of cash up front in exchange for no contract or no information | Unit may be used for illegal activity |
| Refuses to show ID or income proof | Untraceable if problems arise |
| Shifting or excessive number of occupants | Faster wear; breaches building rules |
| Wants the lease in the name of someone who didn't view | The occupant isn't the contractually responsible party |
| Pushes to remove repair or inspection clauses | Disputes at move-out |
Apply the same criteria to every applicant: ability to pay, rental history and fit with the unit's conditions. Don't reject on race, religion or personal characteristics unrelated to being a good tenant. On personal data, keep only necessary document copies, annotate their purpose, store them securely, and destroy unsuccessful applicants' documents when no longer needed, in line with personal data protection principles.
Bangkok condo convention is a two-month deposit plus one month in advance. That softens losses but doesn't replace screening — two months vanish quickly if a tenant falls months behind and leaves the unit damaged. Landlords letting enough residential units to fall under the controlled-contract rules must also follow the Contract Committee's notification on deposits and refunds.
Always double-check. Good agents pre-screen, but their incentive is to close quickly. Ask for the tenant's documents before agreeing and speak with the tenant directly at least once.
Yes, if other income evidence is clear — six months of statements with regular inflows — or offer the option of a slightly larger deposit or a guarantor.
Building rules come first. If allowed, pet owners often stay longer because suitable units are scarce, but include clauses on damage and move-out cleaning.
One good tenant produces years of steady income with little management; the wrong one costs money and time. Systematic screening — identity, income, history and a documented condition report — adds only a few days but prevents most problems. Read more landlord guides on the MyProperty blog.
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