Building Reliable Vendor Relationships for Property Management

To build a vendor list you can rely on, hire contractors whose state license and insurance you have checked, use an EPA Lead-Safe Certified firm for paint-disturbing work in housing built before 1978, put the scope and price in writing, and collect lien releases on larger jobs. Get a Form W-9 from each vendor before the first payment. If your rentals are a trade or business, you file Form 1099-NEC for each unincorporated vendor you pay $2,000 or more for services in 2026.

Which vendors to line up first

Have at least one vendor, and ideally a backup, for each of these before you need them:

• Plumber, electrician, and heating and cooling contractor who take after-hours emergency calls.
• Handyperson for small repairs, and a turnover crew for cleaning and painting between tenants.
• Locksmith, pest control, and appliance repair.
• Roofer and a water and fire damage restoration company.

Ask other local landlords and property managers for names. The California Contractors State License Board (CSLB) also suggests local material suppliers, subcontractors, and lenders as references on whether a contractor pays its bills. For a building far from where you live, managing rental properties remotely covers setting up a local team and access for vendors.

Check the license and insurance

License. Look up every contractor on your state's licensing board website before you hire them, and check the license status and any discipline. When the contractor visits, ask to see the license card and a photo ID and confirm the names match. Rules on who needs a license vary by state. In California, anyone bidding a job of $1,000 or more in labor and materials needs a contractor's license, and so does anyone doing a smaller job that needs a building permit or uses hired workers. That threshold rose from $500 on January 1, 2025.

Insurance. Ask each contractor for a certificate of insurance, a one-page summary of their policies, showing general liability and workers' compensation. Check that the policy dates cover your job, and call the insurance agency listed to confirm the policy is active. The CSLB warns that if an uninsured contractor's worker is hurt on your property, you could be liable for the injury costs, and your own policy may not cover them. California requires workers' compensation for any contractor with employees, and for concrete, heating and air conditioning, asbestos abatement, roofing, and tree service contractors whether or not they have employees. Collect a new certificate when each policy renews.

Bond. California contractors must carry a $25,000 license bond. The CSLB notes that this amount is often not enough to cover several complaints or a larger job, so do not treat it as job insurance.

Lead-safe work in pre-1978 rentals

Under EPA's Renovation, Repair, and Painting (RRP) rule, paid work that disturbs painted surfaces in housing built before 1978 must be done by an EPA Lead-Safe Certified firm, with a certified renovator directing the work. The rule applies when a job disturbs more than 6 square feet of painted surface in a room, or more than 20 square feet outside, and to any window replacement or demolition of painted surfaces, whatever the size. Smaller jobs qualify for the exemption only if they avoid EPA-prohibited or restricted work methods, such as power sanding without required dust controls. Jobs in the same room within 30 days count as one job, so splitting the work does not avoid the rule.

What that means for you:

• If you hire a firm, you do not need certification yourself, but the firm must be certified. Ask for copies of the firm's certificate and the renovator's certificate before work starts.
• If you or your own employee do the work, you need firm certification and must assign a certified renovator to direct the work and perform the required renovator duties. Other workers may work without individual certification if trained by a certified renovator.
• Before work starts, the firm must give you the EPA pamphlet Renovate Right no more than 60 days ahead. For an occupied unit, the firm must also give a copy to an adult tenant.

Fifteen states run their own EPA-authorized programs in place of the federal one: Alabama, Delaware, Georgia, Iowa, Kansas, Massachusetts, Mississippi, North Carolina, Oklahoma, Oregon, Rhode Island, Utah, Vermont, Washington, and Wisconsin. In those states, check that the firm meets the state's certification requirements; EPA notes a firm working in more than one state may need both.

The rule does not apply when a certified inspector or risk assessor has found that the painted components being disturbed are free of lead-based paint.

Get bids, contracts, and lien releases in writing

Bids. For any job beyond a routine service call, get at least three written bids for the same scope. The CSLB warns that a bid far below the others probably means the contractor made a mistake or left out work.

Contract terms. Put the scope, materials, price, payment schedule, start and completion dates, and who pulls permits in writing, and require a signed change order before the scope or price changes. California sets these rules for home improvement contracts over $500:

• The down payment cannot exceed $1,000 or 10% of the contract price, whichever is less.
• Later payments cannot exceed the value of the work completed or materials delivered.
• The contract must show the contractor's license number.

Lien releases. In California, an unpaid subcontractor or supplier can file a mechanics lien, a legal claim against your property, even after you have paid the general contractor. The CSLB's steps for California work:

1. Save every preliminary notice you receive from subcontractors and suppliers; it lists who could file a lien.
2. Before each payment, get a signed conditional lien release from each of them. A conditional release takes effect only once the claimant is actually paid.
3. After each payment, get an unconditional release signed by each claimant you paid. It confirms they were paid for that portion of the work and gives up their lien rights for it.
4. Hold the next payment until you have the unconditional releases for the last one, or pay with a joint check made out to both the contractor and the subcontractor or supplier.

Other states have their own lien laws and release forms, so ask the contractor or a local attorney which ones apply before a large job.

Collect a W-9 and file Form 1099-NEC

1. Get a Form W-9 before the first payment. It gives you the vendor's name, tax ID number, and business type. If a vendor will not provide a tax ID, you must withhold 24% of reportable payments, which the IRS calls backup withholding.
2. Decide whether you must file. You file Form 1099-NEC only for payments made in the course of a trade or business. Whether your rentals count depends on the facts, so ask your tax preparer; Schedule E asks each year whether you made payments that required a Form 1099.
3. Report qualifying vendors. For payments made in 2026, file Form 1099-NEC for each vendor paid $2,000 or more for services, including parts and materials that were incidental to the service. Payments to corporations, including LLCs taxed as corporations, are generally exempt, but attorneys' fees are reportable even when the firm is a corporation. The IRS may adjust the threshold for inflation starting in 2027.
4. Skip card payments. Payments by credit or debit card, and some payments through payment apps that count as third-party networks, are reported by the payment company on Form 1099-K, not by you on Form 1099-NEC. Ask your tax preparer whether a given app counts.
5. File and send by the deadline. Form 1099-NEC goes to the IRS and the vendor by January 31. For 2026 payments, January 31, 2027 falls on a Sunday, so the deadline is February 1, 2027.

Record each invoice with the property and expense category as you pay it; accounting for landlords covers the books and the Schedule E lines.

Payment terms that keep vendors responsive

Write down terms with each regular vendor before the first job:

• Rate sheet: hourly rate, trip charge, after-hours and weekend rates, and markup on parts.
• Approval limit: a dollar amount the vendor can spend without calling you. Handling maintenance requests explains how to set one and route tenant requests to vendors.
• Invoice rules: unit address, itemized labor and parts, and before-and-after photos.
• Payment timing: a set number of days after a complete invoice, such as 15, and the payment method. Then pay on that schedule every time.
• Tenant access: who gives the tenant entry notice, and how the vendor gets keys or a code.

Keep a short record for each vendor of response time, callbacks to redo work, and cost per job, and use it to decide whom to call first. Book recurring work, such as spring and fall heating and cooling service, with the same vendors through your preventive maintenance schedule. If you would rather hand vendor management to someone else, self-managing vs. hiring a property manager compares the cost.