Newly wed and relocating. FIL wants to move In

My husband and I are newly weds with two beautiful children (under 3). We are relocating from New York to Georgia in 2 weeks. My FIL told my husband “wherever you go I’m going”. FIL used to live in Georgia a year ago but got kicked out by his long time GF. He has since been living with his mother and sister in NY. He’s about 57 years old.

My husband asked if the FIL can “stay” in our new apartment until he finds his own apartment close to our home. We recently found out that his SSDI benefits will be about $1600, where most 1 bedrooms probably won’t accept him because he doesn’t make 3x the rent. He also has bad credit. FIL says he knows how to find apartments on Craigslist, but I don’t know. I get the feeling he wants to move in with us knowing it’s going to be hard to find him an apartment. There’s absolutely nothing wrong with where he’s staying now in NY.

Can I get some advice? I spoke to my husband about how I feel, and he’s taking it the wrong way. I’ll add also that my FIL was just diagnosed with Parkinson’s disease. It’s in the very early stages and not debilitating at all. I’ll add also that my husband ALWAYS takes care of his dad (ie. giving him money because he’s mismanaging his own funds, even when he was working)

Any advice is great. Thanks !