Meet the Cook Brothers
Down payment assistance specialists at Cornerstone First Mortgage. We help Tucson and Pima County home buyers sort through DPA programs and plan a path to homeownership.
Built for Tucson Home Buyers
Tanner and Zac Cook are down payment assistance specialists at Cornerstone First Mortgage. They specialize in helping Tucson and Pima County home buyers understand down payment assistance programs like the Pima Tucson Homebuyer's Solution and Home Plus Arizona, and they confirm for each buyer which programs can be paired with a loan through Cornerstone.
Their mission is simple: help first-time home buyers and working families overcome the biggest barrier to homeownership — the down payment. Many buyers in Tucson don't realize they may qualify for down payment assistance figured on the loan: up to 4% through Home Plus Arizona, or 2% to 5% through the Pima Tucson Homebuyer's Solution, where the 5% level comes with its EDGE rate buy-down.
With deep expertise in Tucson's DPA programs and a commitment to personalized service, the Cook Brothers guide buyers through every step of the process — from initial eligibility to closing day. Whether you're buying in Tucson, Oro Valley, Marana, Sahuarita, or Vail, we walk with you every step of the way.
The Team
Two brothers, one mission — help Tucson families achieve homeownership through down payment assistance programs.
Tanner Cook
Mortgage Loan Originator
NMLS #2090424
Tanner doesn't miss a detail. He reviews every file against DPA program guidelines to make sure nothing slips through the cracks. That precision keeps deals on track and closings on time — helping Tucson families get into their homes faster.
Zac Cook
Mortgage Loan Originator
NMLS #2111496
Zac is the creative problem-solver. He works closely with every client so they know exactly what their mortgage payment and down payment assistance will look like — no surprises, no guesswork. He's especially knowledgeable about Pima County programs.
What Sets Us Apart
We're not your typical mortgage company. Here's what makes the Cook Brothers different.
Tucson DPA Program Experts
We specialize in Tucson and Pima County down payment assistance programs. We know the eligibility requirements, income limits, and program nuances of the Pima Tucson Homebuyer’s Solution, Home Plus Arizona, and each Lighthouse funding round.
Multiple Program Options
We help you find the DPA program that fits your situation. The Pima Tucson Homebuyer’s Solution offers 2% to 5% of the loan to first-time and repeat buyers in Pima County, Home Plus Arizona offers up to 4% statewide, and Lighthouse adds 4% for first-time buyers only when a funding round is open.
Tucson & Pima County Focus
Whether you're buying in Tucson, Oro Valley, Marana, Sahuarita, or Vail, we know the local market and which DPA programs work best in each community.
Personalized Guidance
We walk with you every step of the way, from eligibility to closing. You'll always know where you stand and what comes next. No surprises, no guesswork.
At a Glance
Licensing & Compliance
We are fully licensed and operate under strict regulatory oversight.
Cornerstone First Mortgage
NMLS #173855
Arizona Mortgage Brokers License No. 0910407
Tanner Cook
NMLS #2090424
Zac Cook
NMLS #2111496
Equal Housing Opportunity
We are committed to providing equal access to housing and lending services.
Verify our licenses on the NMLS Consumer Access website. NMLS Consumer Access is a free service provided by the Nationwide Multistate Licensing System.
Ready to Work With Us?
Take 60 seconds to see if you qualify for Tucson down payment assistance, or call us directly to speak with a DPA specialist.