We have been working to be extremely conservative with our estimates but with this being our first go at this, any additional expertise is greatly appreciated! 

My home has an estimated $100,000 or more in equity in it.

Additionally, the estimate for my tax preparation for this year was approximately $1,000 over the cost I paid last year (including the time I paid for them to correct their errors).

The two existing LTR units (on my family’s property) were built 5–8 years ago at a cost of about $80,000 per unit, so I’m estimating a 20% increase in costs for the new builds.My plan is to use the equity in the land as the down payment for the construction loan, which I expect will make closing costs the primary upfront expense.

I’ve used PriceLabs Revenue Estimator in the past with great success.

Your estimate seems low, but even at that cost, it will not add that value.  

Through this journey, I’ve built strong relationships and developed valuable expertise in:Researching micromarkets and identifying comparables, potencial Accurately estimating construction or remodeling costs.Securing fast and reliable financing through partnerships with two top hard money lenders in Texas, offering competitive rates.I’m on this platform to connect with capital partners who are seeking an annual ROI of 12%-15%.

An agent should be able to send you a estimated proceeds sheet. 

You'll want to get a tax estimate if you sold in 2024 so you can pay in the appropriate amount of tax (Assuming you didn't do a 1031 exchange).

(The floors are tile and terrazzo, so it is easy to clean up spilled paint.)We haven't gotten an estimate on the painting from a painter yet.