Can you hold more than 9 cards?

p1 and p2 are on a team. p3 and p4 are on a team.
Lets say that in the previous round p2 almost eliminated p3, and p4 almost eliminated p1.
p1 has 4 cards, 1 territory, and that territory is adjacent to p3 who also has just 1 territory, but has 5 cards.
If p1 does not use his set and takes p3 out he obviously gets p3's cards, making 9 cards total.
What if p1 doesnt cash any of his 9 cards, and p2 (who happens to have 4 cards) takes his partner (p1) out. Will he get his partners 9 cards?
If not, is 9 cards the maximum amount that a player can hold at a time... by way of eliminating other players?
Lets say that in the previous round p2 almost eliminated p3, and p4 almost eliminated p1.
p1 has 4 cards, 1 territory, and that territory is adjacent to p3 who also has just 1 territory, but has 5 cards.
If p1 does not use his set and takes p3 out he obviously gets p3's cards, making 9 cards total.
What if p1 doesnt cash any of his 9 cards, and p2 (who happens to have 4 cards) takes his partner (p1) out. Will he get his partners 9 cards?
If not, is 9 cards the maximum amount that a player can hold at a time... by way of eliminating other players?