im gainsborough and just got hull as a parent club how long after can i get another parent club coz the option is greyed out atm

With any affiliated teams, it's usually between 3-6 months before you can apply for a new one. You might not get it even then.

is there an amount your aloud to have

I dont know, but when i applied for another they said they would look into the option of finding a replacement for my first parent club.

In the end they didnt even find one. This has happende a couple of times now.

I've never managed to get more than one parent club. The board either never let me have the option back or they just say no when I ask.