I am still active duty with a few years left, we are developing our investment strategy now (LTR, STR, Notes, Liens). 

Tax Deductions and Credits: Be aware of potential tax deductions and credits related to real estate taxes, which can significantly reduce your overall tax liability.Real estate taxes can be a significant expense, but with the right knowledge and strategy, you can ensure you're not overpaying. 

It's a smart strategy, especially for first-time investors looking to maximize their real estate investment returns.

@Griffin Sisk I learned the hard way investing with friends that to cover your bases be sure to make it official and have a formal partnership agreement with at least one or two well thought out exit strategies in the event something goes wrong or someone needs to exit the investment.

Any good strategies that will get me set up for an 80% LTV purchase?

I've tried every real estate strategy and they all work well, but systems need to be implemented in order for them to function with less headache. 

My guess is it's not an completely optimized policy for this strategy, but it might be ok.Feel free to reach out with any questions at all regarding how all this works.

My husband and I are utilizing the build-to-rent strategy.

Financing: While putting 50% down is a solid strategy to reduce interest costs and increase cash flow, it's essential to consider the overall financing terms.

So the above, is directly in response to your question/strategy BUT, I would certainly consider NOT SELLING THE LOT NEXT DOOR... especially since you said you're seeking 'additional cash-flow' -- if you sell, it won't be recurring cash-flow instead it will be a one-time infusion of cash into your bank account and then its done AND you won't have much control on what happens next door aside from what restrictions you have placed in the deed... why not instead of selling consider... offering it as a 'ground lease' whereas, the person seeking the lot is allowed to build on the lot but then will pay you rent for the use of the land... this would be similar to some commercial agreements or even mobile homes where the tenant owns the structure but you own the land on which it sits on.. it's also quite similar to how McDonalds and some other franchise businesses operate it's how they are able to ensure that the properties being built are built and operated in accordance with their vision, if a tenant does not build it or operate it 'correctly' then the Landlord will have leverage in ensuring that it is rectfied... because after all you do still own the land and may terminate lease if the terms are violated.