Oklahoma residential construction dispute — trying to understand the legal issues and what questions to ask my attorney

[u/Darker_Barker89]

I understand attorneys here cannot give me individualized legal advice, and I'm not asking anyone to tell me whether I should sue, what claims I should bring, or what I should do next. I have consulted with an attorney.

I'm hoping to better understand what legal concepts attorneys generally look at in a situation like this, what facts/documents tend to matter, and what questions I should be asking my own attorney.

Background:
My husband and I are building a custom home in Oklahoma using a VA one-time-close construction loan. We entered into a written construction contract with our builder and later executed an addendum addressing items including the project budget, builder's fee, payment/draw structure, and other construction terms.

As construction progressed, we began identifying discrepancies between the original project budget, amounts being requested or paid through lender draws, invoices/receipts, credits for returned materials, and explanations we were receiving from the builder. We have been trying to reconcile what the project has actually cost, what amounts the builder is contractually entitled to receive, and where certain project funds or credits were applied.

One of the largest issues involves the builder's fee. We have concerns about how the fee has been calculated and collected compared with what we understand the contract/addendum and project budget to provide. We have the original budget, contract and addendum, lender draw documentation, invoices, and written communications with both the builder and lender that document how the fee and various project costs have been represented over time.

Cost-plus contract / documentation of costs:
Our contract describes the project as cost-plus a builder's fee, with the buyer responsible for the cost of labor and materials. One issue I'm trying to understand is what level of documentation would ordinarily be expected to substantiate the costs being passed through to the buyer under this type of contract.

The builder generally sends us QuickBooks invoices containing broad descriptions rather than the underlying supplier invoices, receipts, or itemized material lists. For example, one invoice contained a line item simply stating “Frame Materials — $57,000.”

After framing had already been completed and paid for, we later received another charge described only as “Frame Extras — $209.93.” I asked for a material list or other documentation showing what the additional charge represented and was told I could not have the material list. I then asked what materials or expenses made up the $209.93 charge, but I was not provided an explanation identifying what the charge was for.

This is part of a broader concern about our ability to reconcile the amounts being charged to the project against the actual labor and material costs we are contractually responsible for paying. I am not asking whether these specific charges violate our contract; I am trying to understand generally how costs are typically substantiated in a cost-plus residential construction arrangement and what significance, if any, attorneys would place on a contractor declining to provide documentation supporting a disputed cost.

We have also encountered situations involving materials purchased for our project that were later returned or removed from the property. In at least some instances, we believe we paid for the materials through the construction project, but we're trying to determine how the resulting credits/refunds were handled and who was legally entitled to them.

There are also several construction-quality and remediation issues. These include damaged building materials and mold concerns during construction. We have photographs, inspection-related documentation, and written communications concerning what the builder represented would be done to address some of these conditions.

Because this is a lender-funded construction project, another concern is the relationship between the builder's invoices/draw requests and the funds actually disbursed by the construction lender. We are trying to understand what obligations, if any, exist when funds are requested or disbursed for particular construction costs and the actual cost, use of the funds, or subsequent credit differs from what was represented.

We have preserved the contract/addendum, budgets, invoices, receipts we have been provided, lender draw records, emails, photographs, inspection documentation, and other project records. We are consulting an attorney, so I'm not asking anyone here to tell us whether we have a viable claim, whether we should sue, or what legal action we should take.

I'm primarily trying to understand what legal issues attorneys generally evaluate in circumstances like these, what facts distinguish a contractual/accounting dispute from other potential causes of action, and what questions or documents would be important to discuss with our own attorney.

What I'm trying to understand:

1. In a construction dispute with facts like these, what legal theories would an attorney generally evaluate—breach of contract, accounting, unjust enrichment, conversion, fraud/misrepresentation, Oklahoma construction statutes, or something else?
2. What facts typically distinguish an ordinary billing/accounting disagreement from conduct that could support a separate legal claim?
3. How significant are contemporaneous documents such as the original budget, contract/addendum, invoices, lender draw requests, receipts, credits, and emails when the parties disagree about what the builder was entitled to charge?
4. If money from a construction loan was drawn for a particular cost but ultimately wasn't used for that cost, what legal issues would attorneys generally investigate?
5. If materials purchased with project funds were returned or removed from the property, what facts determine who is legally entitled to the refund/credit or the materials?
6. Are there Oklahoma statutes, regulations, or reported cases involving residential builders/construction loans that would be useful for a homeowner to read besides Title15?
7. Based solely on issue-spotting—not legal advice—what questions would you recommend someone in this situation take to their own construction attorney?
8. In a cost-plus construction contract, what determines the contractor's obligation to substantiate the “cost” being passed through to the owner? Is that determined solely by the contract language, or are there other Oklahoma contract/accounting principles that may apply when the contractor invoices the owner for actual labor and material costs?
9. If an owner disputes a specific cost and asks what materials or labor comprise that charge, what documents would attorneys ordinarily look for to determine whether the charge is supported—for example, supplier invoices, receipts, purchase orders, subcontractor invoices, material lists, canceled checks, or other records?

I'm particularly interested in understanding what facts would change the analysis. For example, if the answer depends on what the contract says about builder fees, ownership of materials, credits, change orders, or loan proceeds, I'd appreciate knowing that so I can identify the relevant documents for my attorney.

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[u/Drinking_Frog]

 I'd appreciate knowing that so I can identify the relevant documents for my attorney.

Give your attorney everything you have that's in any related to the matter and answer all their questions completely and honestly. Don't try to be co-counsel, and absolutely don't edit the evidence.

[u/Darker_Barker89 → u/Drinking_Frog]

Thanks! I definitely have a binder with the contract, addendum, budget that was submitted to lender, budget that our Builder sent with updated figured, Email chain from builder and lender. all quickbook invoices. We have reached out to JAG and a contract lawyer and figured we would also see what a construction lawyer would say and would want.