Strange Neighbors by Ashlyn Chase

He’s not your typical boy next door… All Jason Falco is looking for is peace, quiet, and a little romance. But there’s never a dull moment when the hunky all-star baseball pitcher and shapeshifter invests in an old Boston brownstone apartment building full of supernatural creatures. When nurse Merry MacKenzie moves into a first floor apartment, the playboy pitcher decides he might just be done playing the field.
A girl just wants to have fun… Sexy Jason seems like the perfect fling, but newly independent Merry isn’t sure she’s ready to trust him with her heart–especially when the tabloids start broadcasting his playboy lifestyle. Then Pandemonium breaks loose and it looks like Merry and Jason might never get together without a little help from the vampire in the basement and the werewolf upstairs.