I’m closing on a property in a few days and I’m curious to add up our budget for rehab costs.Thanks!

The biggest is that the budget is more "consistent" than in a remodel. 

Site cleaning is consistently understated in rehab construction budgets. 

With that said, 3 of the 4 listing's are for $1200 a month.It's definitely the off season for Lake Oconee and Lake Sinclair, so reaching out to these listings through FF and seeing if they can match your son's budget is worth a try.Best of luck!

If I intend to fund the rehab with my own cash, do I need to disclose my rehab budget?

If it is keeping you up at night and pinching your personal budget quite a bit, that's a different matter.  

Google is your friend.The FEMA 50% Rule is a little-known rule that limits rehab budgets on homes in a flood zone to only 50% of the value of the STRUCTURE.

Talk with an investor friendly mortgage broker to determine your budget for a single-family and a small multifamily property. 

I add 20-30% to any rehab budget for contingencies / as a buffer, and Im local to my projects. 

Ensure that the updates are of high quality yet within budget to maximize the increase in value.When it comes to refinancing, after completing the renovations, you can refinance your home to access the created equity.