I like to travel, and I would like to rent out tor buy a motorhome .

I think ,hope one day this virus will be awayfinally be over!!

'Over and done with' would be the full expression.

I would like to stay in the USA for three months in USA.

I like to travel, I would like to rent out tor buy a motorhome .

I think , one day this virus will be away!!over!

I would like to stay for three months in USA.

I like to travel,. I would like to rent out to buy a motorhome .

These are two independent clauses. They need to be either two separate sentences or connected by a conjunction ("and" here).

I think ,hope that one day this virus will be away!!

I would like to stay for three months in USA.

I like to travel, and I would like to rent out tor buy a motorhome .

This may have been a typo, but introducing a verb after "to" suggests that it is the purpose of the previous action. "Rent to buy" is indeed a phrase, but there is no "out" there and it's specific to certain types of situations.

I think , one day this virus will be awayone day be gone!!

This placement of "one day" is more idiomatic to me.
"Away" suggests that it might be back, so "gone" is more appropriate.

I would like to staypend three months in the USA.

Or: "I would like to stay in the USA for three months."