Esmay, we lived abroad for 13 years and during that time let our house via an agent - corporate lets only, probably easier for us in outer SW London.
We had no trouble with tenants - German, French, Japanese - except that someone - we never did find out who - nicked all dh’s treasured Dinky Toys out of the loft! 🤬
There was quite a hefty percentage to the agent, IIRC 17.5% - who saw to all maintenance issues, and several expat friends told us we were daft, we were paying through the nose - they had let theirs to friends or family, no agent to pay.
Without exception, all of them later had trouble - either the friends or family refused to leave when they needed the house back, or they stopped paying the rent, or they trashed the place.