With three new kids, the last thing you have time for is managing a decent sized renovation.

Much needed relief ...Austin-Bergstrom International Airport is rolling out a new multimillion dollar expansion plan, the largest expansion in its history.AUS is poised to nearly double in size with the expansion, which is part of the Journey with AUS program.

It's not a one-size-fits-all answer, but hopefully this gives you some food for thought.Whatever path you choose, I'm here rooting for your success.Jasper & PatTurning investment visions into REALITY in Phoenix, AZ - Ranked #1 for residential real estate growth and opportunity by PwC

Tesla Inc. appears to be on the verge of a major expansion of its huge factory in eastern Travis County, with recent filings indicating the Elon Musk-led company intends to add 5 million square feet to it — a 50% increase from its current size of 10 million square feet.

If you click the photo it should open full size in another tab.)This is imprecise so you can take this and fine tune it to make it better, but you get the idea. 

Although it seems like the OP is really not looking to get much money 3 years of cash payments on that size loan is what 30k  seems hardly worth the effort.

Perfect example Oregon ( Hillsboro tech Hud) got a massive amount of Chips Federal Grants as Chips are seen as a National need ( dont want to rely on Taiwan)  Intel is largest employer in state . the city of Hillsboro identified 1700 acres to bring in to ensure future high Tech growth ( got to have the land)  the no growthers and farmers and newspapers scream we cant have sprawl U cant do this.. we have plenty of land already in the Urban Growth areas.. while thats true very few parcels are over 40 acres in size.

I have a 3 BDR one bath  house in Maple Heights Ohio that I am considering renting to section 8 tenant .CMHA chart for the house zip code showing a max rent of around $2000 for 3 bedroom.I know market rent of my house is approximately 1300-1400 $I am adding efrigerator and oven.The house is older but in decent shape.

For a single family home the size and scope you're describing, I wouldn't involve an architect unless you're looking for end-to-end project management.   

You might even find a mentor who can guide you along the way.Begin with a Bite-Sized Project: You don’t need to jump into a big project right off the bat.