Corville, run by a husband-and-wife team who met working at NatWest, is the latest firm to be bought by AFH.
The firm was founded by Debbie Burchall’s mother in 1986 and Mrs Burchall and husband Nick joined the company in 2012 and 2013 respectively.
In 2014 they were joined by Niall Middleton, who started as a trainee financial adviser after a spell managing investments at Aviva, he qualified in 2016.
All three are joining AFH as well as Mrs Burchall’s aunt, Jean Garside, who is Corville’s office manager.
The firm currently manages more than £94m for around 600 clients, mostly in Yorkshire and Teesside.
Mr Burchall said: “As the sector developed, we realised that we would best be able to look after our clients as part of a group.
“We had a good investment proposition, so we looked very hard to make sure anyone we joined shared that philosophy.
“We found what we wanted at AFH.
“Not only does the company share our determination always to put clients at the heart of what we do, but it has an unmatched expertise in investment, research and technical support.”
AFH chief executive Alan Hudson said: “It’s great that Debbie and Nick are joining the AFH family.
“I’m sure the back-office support that we can offer them will be of benefit to their clients. It certainly means they’ll be seeing more of them.”