I am semi-confident in my numbers but looking for all and any feedbacks this is my first property and don’t want to miss something critical.

I plugged some numbers in the calculator on calculator.net here.I'm having a tough time figuring out how they are calculating that last column in the table: Return (IRR).I'm trying to plug some of these numbers into the IRR function on google sheets so i can try to figure out how they're coming up with those values. 

I would inspect the existing windows now and make sure they visually look appealing and function property.

Good organizational skills, attention to detail, critical thinking, and being able to communicate are the ones that come to mind.

A ton of wholesalers and flippers, but not a lot of developers.  1) I've never tried getting financing to buy the land, I typically buy my land cash so I'm not incurring holing cost while waiting for approval 2) it should not be difficult to get a construction loan, I know lending one offers new construction loan, for my deals I've got a private  lender that borrows me money 3) The way I structure my deals, I'm paying out of pocket for all soft cost engineering, architect,  soil test, impact fees, I left out 2 critical steps on my initial write up Soil test: I'm ordering a soil test as soon I put the lot under contract, the cost is about $500, the county would want to see the result of the test when submitting your stormwater management plan Impact fee: Make sure to check with your county, some counties have them and some don't impact fees could be huge, in my county depend on where you build impact fees could be as much as $25k or $12k 4) I try to get as much as I can get done while under contract, In my county the typical turn around time is about 4months, while in Baltimore county I know builders that will close today and break ground the very next day, they have a faster permit process 

Also its a function of a comfort of a smaller or larger monthly payment.

@Joseph GislerLike any other investing, timing your purchases and sales is still critical. 

It’s also oftentimes difficult to fully service client needs when you’re not available because of your other job so it’s critical that you have other agents or team members that you can rely on when need be.

I agree with the other posts that maintenance/cap ex is not primarily a function of the rent amount and that using percentage of rent for costs that are basically unrelated to the rent amount creates a pro forma that would be better if another method were used to estimate maintenance/cap ex.  

It took a month and half to complete, listed it online and had quite a few requests and had it rented by Jan. 1st at $899 per month which was above my rent projections.and then apt#2 moved out end of Nov2020 but this time gave me a notice. 2 vacancies at the same time was stressful as hell because before hand everybody was saying they want to stay but I had to stop and realize this is actually part of the plan and a great thing because if I only buy value-add Apartments because it creates equity and if value add is a function of improving the income then I can only buy a property if i can improve the income.