@Tammy239 and @Shane321
I am not vastly experiened with this myself, but I am aware that in many ( most) locations, once a stay goes over 30 days the rights of the renter change - it is no longer an STR but an LTR and tenancy rights come into play. I believe this can make it a little more awkward for you and you may need to organise a tenancy agreement if you are worried about things.
However even with a tenancy agreement, as I understand it, you as the landlord are able to nominate things like "visits" to ensure your property is being adequately maintained - but you need to get this sorted prior to the stay commencing.
I am not legal expert, but my feeling is, the buck stops with you - it's your property so if a guest if requesting anything that makes you uncomfortable don't feel forced into it. After all unlike an actual LTR you will still be covering utilities etc. However I can also see the guests point of view - they want a bit of privacy. Personally I think communication is the key. Say you are not prepared to let the property go 2 months without an inspection but you are willing to negotiate the fortnightly clean ( if you are)
If the guest is reasonable and flexible and explains their concerns adn you feel re assured and comfortable - all good. But if the guest starts trying to impose how THEY want things and expects you to fall in line with them, I would be asking them to move elsewhere. No long term booking money is worth the potential of a difficult guest who may to damage
I'm sure more experienced hosts will be along shortly who can offer more specific advice.
Good luck!